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stone may be procured at every point where its use is Other items the same as on the preceding page 1,387 00 required, at an expense not greatly exceeding its ordinary cost. At Erie there will be no difficulty, as stone

$7,019 50 of an unexceptionable quality is found at several places 'The same mode of estimation for a lock of 115 in that vicinity. At Walnut creek also, a stone which it feet lift and according to the estimated is believed, will answer very well for the plans of the prices of masonry in the Conneaut valley, aqueduct at that place, is found in layers of 10 or 11 would give for the total cost

$7,812 00 inches in the shallow water of the lake. From either of these localities stone may be furnished by a land car- Aqueducts. A variety of modes have been discussed, riage of four miles, for the works on Elk creek. For for the great aqueducts of Elk and Walnut creeks-difthose in the Conneaut valley it is thought that stone of fering chiefly in the materials and construction of the a suitable quality may be found on Fetterman's run, and trunk. One mode of construction would consist of a probably near Jenk's mill, or in Jackson's gully; at all simple wooden trunk, laid without any artifice upon events, it is highly probable that the material may be ob- piers of masonry; but this, as it requires a great number tained from one or other of these localities for all purpo- of piers, would be altogether unadvisable, in a case ses, except that of the face work and coping. Under where the the piers themselves constitute so considerathese circumstances the cost of masonry will vary at ble a portion of expense. Another mode admits a large different points of the route, very nearly at the follow- space between the piers, and gives intermediate support ing rates.

to the trunk

by means of wooden frames. A 3d, in the At Erie and Walnut creek, good ordinary masonry same case affords the intermediate support by frames of suitable for foundations laid in cement, per perch of 25 iron. A 4th, employs a trunk also of iron, and a fifth feet, at $2_50. Best jointed work laid in like manner consists of arches and a complete structure of masonry. (face dressing not included) per perch of like

The system of construction by means of wooden

$2 85 frames, cannot be recommended in any work of this At Elk creek the ordinary kind will cost 2 80 kind of more than ordinary magnitude and expense, and The best

3 15

in the situations at Elk and Walnut creeks, where in In Conneaut valley the ordinary will average 300 consequence of the great height, the saving in first cost The best

3 40 would be but a very inconsiderable part of the whole, Bricks may in many cases be substituted with advan- and where for the same reason, any great liability to retage; if burnt for the purpose, but the ordinary bricks pairs would be a peculiar evil, they are considered as of the country are wholly unfit for any purposes of con

decidedly objectionable. The same objection, dues struction whatever.

not apply to the same extent to a wooden trunk, where The culverts and other small constructions not being able materials, though undoubtedly, the most perfect.

the supporting system is composed entirely of imperishgreatly affected by these variations, are calculated at structure would be that which is built entirely of iron or the average. According to this mode, small culverts of stone. To the latter material there is one system in the three, five and seven feet in an embankment of ordinary present case on account of the extraordinary expense depth, are estimated for the whole line, at $285, 375, attending the construction of scaffolding, centres, and and 480 respectively.

other accessary works for turning an arch at so great a Those of 9 feet will cost about

$610 height. An iron frame on the contrary, requires no Stop gates are estimated in a similar manner 672 such preparation, it may be set up in the most expediWaste gates of masonry (for every opening of tious manner, without any centering or extra scaffolding eight feet) at

271 whatever, and becomes immediately the means of comWeirs of masonry for a lip of 20 feet

465 pleting the remaining parts of the structure. It may be Other works however, as the locks and aqueducts, re- added, that the practical advantages of this mode of quire a more particular estimation.

construction, are now no longer matter of mere conjecLocks. These are supposed to be constructed of the ture. One of the finest aqueducts in the world, and in most substantial masonry throughout. All the face work, a situation strongly resembling those under consideraand coping, rough cut, and the bottoms finished with tion, is constructed of iron; and fully confirms after rubble and a good flay pavement or reversed arch of nearly twenty years use, the opinions and calculations of brick. The breast walls should be set above the recesses

its engineer. Under all these circumstances, my own of the head gates, and the latter constructed in all re

preference inclines to a structure in which the supportspects by the same model as those of the tail.

ing frames are of cast iron, and the trunk either wood or A lock of this construction of 10 feet lift, and at the frame, is a little different from that of Mr. Telford, espea

iron as may be preferred. The system proposed for the Erie prices of masonry, will cost $6,530, viz.

cially if the wooden is used. In that case, the object 1220 perches best masonry, at $2 85 3,447 should be to give two lines of intermediate support to 322 ordinary do.

2 50 805

the sleepers of the trunk, and avoid as far as possible, 5940 square feet face cutting 25 891

all other strains. For this purpose each rib is made to

5,143 consist of two rafters and a crown beam, having altoge90 perches rubble, at $1 50 and

ther, a clear span of sixty-four feet and ten feet rise. 1,680 square feet brick work

The crown beam is entire, spread asunder, on the imat 25

555

post to the distance of 53 feet. The opposite rafters (of 750 yards excavation (extra) and

1,387 | the same pier but in different arches) are connected 180 yards puddle

142

across the top of the pier, from head to head, by chains Grillage and sheet piling

125

or bars of wrought iron, which will also assist in setting Gates and all fixtures

565

the frames, and the middle of the rafters is supported in

a similar manner by a wrought iron tie. Five ribs con$6,530 nected by strainers of cast iron at five points, complete

the frame, which is twenty-two feet wide. The strainA similar lock with a lift of 10.41 feet (and supposingers placed at the junction of the rafters and crown beam, half breast walls) according to the prices of masonry at rise somewhat above the rest of the frame with a strong Elk creek, will cost $7,019 50, viz.

flanch upon which the sleepers of the trunk are bolted 1210 perches best masonry at $3 15 3,811 50

down in such a manner as to touch the frame in no 339 ordinary do. 2 80 924

other point. The trunk is twenty feet wide in the clear 5980 square feet face cutting 15 897

at bottom, and 12 at top, the horse path 4 feet wide, 5,632 50 projecting over the water. The cost of one pier and

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arch, for an aqueduct of this description 70 feet high, Section 3. From Michael Jackson's to the head of may be estimated as follows, viz:

the lockage at Hall's run, 6 miles and 9 perches. Pier (12 feet by 38) on the base, and 8 by 20

Crosses Jackson's gully and east branch of big Conneaut under the plinth of the impost, 814 perches

and has a slight extra cutting near No. 8 brook; otherbest masonry at $4, including machinery $3,376 wise favourable ground and easy digging. Lockage 31 Frame 23 tons cast iron, delivered and set up,

feet 9 inches. at 150 dollars per ton

3,450 Excavation, viz: 231,260 yds. at One and a half tons wrought iron chains Tiest

ordinary depths, aver. at 7 cts. 16,188 20 er, at 150 dollars

225 123,969 embankments, 12 cents 14,866 28 Wooden trunk 2100 superficial feet, caulked,

31,054 48 sheathed, lined, &c. at $30

630 Puddle on 370 perches at $3 50 p. perch 1,295 00 Horse path, rail, &c.

100 Culverts, viz: 1 at 30 ft. at east branch

of Conneaut 814 perches,
Total.......
.$7,781 at $3 75

3,052 50

320 perch. at 1 75 cents 880 00 For a height of 98 feet, the estimate will stand thus: Centering, &c.

980 00 Pier, viz: 1103 perches masonry at 4 dollars 4,412

-4,912 50 Framę, trunk, &c. as before,

4,405 One of 9 ft. 610, 2 of 5 at 3 75c.
and 3 of 3, at 2 85 cts.

2,115 00
$8,817

7,027 50 An iron trunk (the work remaining in all other Bridges, viz: 4 at 2 50 cts. and 7 at 1 40 1,989 00 respects the same) is estimated for each arch

Locks, viz: 3 of 10 ft. 7 in. lift at 7,019 50 21,058 50 at an additional expense of

2,260 Grubbing on 3miles and fence 6 miles 2,630 00 And an arch of stone, at least

3,062 Estimate. Section 1st. From A. near Cumming's

Dolls. 65,045 48 bridge to the end of the deep cutting, in the valley of Conneaut, at C.—5 miles 213 perches, viz: 3 miles Section 4. This includes the lockage at Hall's run along the lake shore and through the low grounds of 145.9, the crossing of Elk creek and the deep cut at the Beaver Dam run, and the remainder extra cutting Fairview. Total 3 miles 239 perches. through the dividing ridge; extreme depth to top water Excavation, viz: 180,610 yards 18 feet.

at ordinary depths, averaged Excavation 361,876 yards, at or

at 7 cents

12,642 70 dinary depths, easy digging,

256,000 embankments at the averaged 7 cents

$25,331 32

crossing of Elk creek, at 12 c. 30,720 00 239,740 deepest cutting and em

482,016 deep cutting viz: 270 bankment, 10

23,974 00

perches, extreme depth 37 ft.

$49,305 32 to top water at 14 cents 67,682 24 Puddling on 304 perches at $3

-110,849 94 50 per perch

1,414 00 Timber work in the dams, at the Culverts, viz: 1 of 14 feet at the

lockage, 14,400 ft. at 5 cents

720 00 outlet, $1,240 and one of 9,

Puddling, viz: 2,800 cubic yards at the lockequal 610

1,850 00

age, at 30 cts. and 536 perches in line, at 3 of 5 feet, at $3 75 as formerly

3 50 cts.

2,825 00 estimated

1,125 00

Locks, viz: 14 of 10.41 ft. lift, at $7019 50 98,273 00

2,975 00 Aqueduct of 3 spans, at $7,781 Bridges, viz: 1 at 140 and 2 at 250

640 00

23,343 00 Grubbing on 44 miles at $240 and fence, 2,440 00 Extra abutment

3,376 00 Wings 2,468 perches, at $2 50 6,910 40 $56,774 32

33,629 40

Culverts, viz: one of 14 ft. at Hall's run and Section 2d. From the end of the deep cut to Mi. one of 5 feet at Deadman's gully

1,615 00 chael Jackson's near the forks of the big Conneaut 164 Safety gates and waste gate with two 8 feet miles, through the intervale generally slight profile and openings, as formerly estimated

1,888 00 easy digging; lockage 170 feet.

Bridges, viz: 3 at 140 and 3 at deep cut, Excavation, viz: 571,768 yds. ordinary levels,

average at 400 dollars

1,620 00 average at 7'c. 40,023 76 Grubbing and fencing

665 00 Do. 136,196 do. do. 8 c.

10,895 68 Do. 160,405 short embankments, 10 16,040 50

Dolls. 252,085 34 $66,959 94 Section 5. From Hagerty's to Walnut creek, 5 miles Puddle on 788 perches at $3 50 per perch 2,758 00 294 perches, slight embankment at Trout run; the reCulverts, viz: i of 14 feet at the two

mainder very favourable, except the soil requires extencrossings of the Conneaut

1,240

sive puddling. Very easy digging. Do. 2 of 9, $610 and 4 of 7 at $480 3,140

Excavation, viz: 195,810 yds. at Do. 15 of 5, 375 16 of 3

285 8,475

ordinary levels, aver. at 7 cts. 13,706 70

12,855 00 Waste gate of 2 eight feet openings, at $271

At Trout run 13 cents 50 cts. as formerly estimated 543 00

18,672 70 Bridges, viz: 4 at 250 dollars and 15 at 140 3,100 00 Puddle, viz: 1,626 perches, at $3 50 5,691 00 Locks viz: 15 of 114 feet average fall at

Calverts, viz: 1 at 12 ft. at 925, 2 of 5 ft. at 7,812 dollars

117,180 00
375 and 2 at 3,285

2,245 00 Grubbing 114 miles and fencing 167 5,360 00 Bridges, viz: 8 at 140 and 4 at 200 dolls. 1920 00

Grubbing, on 4 miles, at 340 dolls. and fenc$208,755 94 ing 5.3 at 240

2,770 00 Note.-The Lockage by means of 17 ten feet locks

Dolls. 31,298 70 would have cost at the Conneaut prices 125,664 00

each

38,200 embankment;} 4966 00

Section 6. Crossing Walnut creek to the upland on leaves $297,685; or $6,280 per mile for the cost of all east side 67 perches.

the other works. Excavation 36.600 yds, for embankment at 12 4,392 00

All which is respectfully submitted: Aqueduct of 5 spans, at 18,817 44,085 00

D. B. DOUGLASS, Extra abutment

4,412 00 Wings 3,912 perches

Professor of Engr. U. S. Mil. Academy: 9,780 00

58,277 00 The following notes and calculations are submitted to the Puddle on 44 perches, at $3 50

154 00 Board, relative to the supply af water for the Waterford Safety gate and waste gate as at Élk creek 1,888 00 summit, and the various questions connected therewith.

As the season was rather unfavorable for the operation Dolls. 64,781 00 of guaging, in consequence of the frequent rains having

raised the

streams somewhat above their ordinary sumSection 7. From Walnut creek to Turkey Hill, near cert with Mr. Ferguson; for obtaining the supply under.

mer discharge, I adopted the following plan, by conErie, 7 miles and 262 perches. Very favourable ground the influence of the drought of 1828. It will be recolexcept a porous soil as in the former instance, and slight lected, that in the course of the survey of that year, the extra cutting at Turkey Hill. Lockage 40 feet. Excavation, viz: 229,350 yards

waters of French creek were guaged with some care at slight profile, including three

Meadville, and as it was reasonable to suppose that the small feeders 7 cents

18,054 50

ratio of discharge for different seasons was nearly the 117,110 embankment and

same at that place and at Waterford, it was now propointerior digging, at 9 cents 10,539 90

sed to repeat the measurement there, for the determina26,594 40

tion of that ratio, at the same time that my measurePuddle on 1,920 perches, at $3 50

6,720 00

ment was performed at the (20) forks. Culverts, viz: 3 of 7 feet at $480 and 3 at 3

The point selected for the measurement near the forks, feet, at 285

2,295 00 was one at which the breadth, depth and velocity of the Wier of 20 feet lip as formerly estimated 465 00

stream within the line of the operation continued as Locks, viz: 4 of 10 lift, at $6,530 26,120 00 nearly uniform as possible, the latter being nearly as Bridges, 9 at $140 and 3 at 250

2,010 00

could be obtained, the result of mere declivity. Two Grubbing three and one-fourth miles, at $340

parallel sections (60 yards apart) and the superficial and fence seven and three-fourth miles, at

velocity, were measured in the usual way, the latter by 260 dollars

2,965 00 means of thin wooden floats so adjusted as to be im

mersed in the surface of the fluid.The mean velocity Dolls. 67,969 40 was then deduced in the most careful manner from that

of the surface, and the product of this and the mean Section 8. From Turkey Hill to Erie harbour, one discharge. The measured velocity was 1,162 feet per

transverse section evidently gives the quantity of the mile and 9 perches, with a lockage of 120 feet. Excavation, viz: 34,415 yards

second, the calculated mean=0,845 feet per second,

and the mean transverse section 105,9 square feet and ordinary depths, at 7 cts.

2,409 05 3,692 in loose slate at 35 c.

whence the total discharge is obtained at 894 cubic feet 1,292 20

per second, very nearly. On the preceding day, the

3,701 25 Puddle, 360 yards at 30 cents per yard

water of Le Boeuff creek had also been guaged and

108 00 Locks, viz: 12 of 10 feet lift at

found to afford a supply of 5-6 feet per second, which

being also available for the purpose of the summit level; 6,580

78,360 Extra walls at the ledge, 280

was added to the preceding in estimating the entire

supply, the result corresponding to the measurement is perches at 2 dollars

560

95.1 feet per second. The measurement of Mr:

78,920 00 Bridges, viz: 5 at 300 dollars

Ferguson was performed at Rodger's ferry in nearly the

1,500 00 Grubbing and fence

same manner, except that as the superficial floats were

265 00 found to be effected by a breeze down stream, another Pier, 140 yards long 9,300 feet

mode was employed for the velocity of submerged squared timber at ở cents 558 00

floats, which is believed in this case to furnish the more 6,720 of plank, at 6 cts. 403 20

accurate result. The quantity calculated from it is 257. 4,200 of round timber, 24 cts. 105 00

55 feet per second. It was remarked by Mr. Ferguson, 1,400 of stone, at $2 75 3,850 00

that the creek was falling at the time of the measure4,916 20

ment; and in connection with this remark, it should be

understood that my measurement was accidentally de89,410 45 ferred till the following morning. The least that could Dolls.

be allowed for the fall in the mean time would be 3-100

part of a foot, which would give 255.4 feet per second Section 1. 56,774 32

for the discharge at Meadville, corresponding (in time) 2. 208,755 94

with the gauging at Waterford.
3.
65,045 48

Comparing this with the result of the preceding year 4. 252,085 34

(158,9 feet,) and reducing the Waterford supply 5. 31,298 70

in the same ratio, we obtain 594 cubic feet per second 6. 64,781 00

as the supply of the summit in question under the influ7. - 67,169 40

ence of the drought of 1826, and it is not probable that

it will often be found lower than this limit.
8.
89,410 45

This it must be allowed is a very moderate supply for Grand total - $835,320 63 Or 17,620 per mile.

the wants of a summit level, but it is not very difficult to adopt a system of lockage to it in the present case in

such a manner as to afford in many respects the advanof this aggregate the crossings of Elk and Walnut tages of a large supply. The mode of proceeding would creeks, including the embankments and deep cuts, make be as follows: up 196,084 64-100, which being deducted gives at the Assuming the length of the summit level, including rate of 13,481 dollars per mile for the cost of the remain the feeder, at twelve miles, if we deduct from the whole ing works. The total expense for lockage at $672 supply, the quantity due to evaporation, leakage and 30-100 per foot lift is $341,551; deducting this also, I waste on this distance, say 13 feet per second, wo shall

SUMMARY

have 464 feet per second, as the quantity available for BIOGRAPHICAL NOTICE OF SAMUEL EMLEN, M. D: the lockage, the half of which-234 feet per second,

By Charles D. Meigs, M. D. may be drawn off for this purpose at each extremity of the summit level. This we find is sufficient for the From the North American Medical and Surgical Journal supply of a 10 foot lock, in constant use, and a mile of

for July, 1828. evaporation and soakage besides, whence we infer that locks of this lift may be used at the extremities of the his age; SAMUEL EMLEN, JE M. D. Secretary of the Col

DIED, on the 17th of April, 1828; in the 39th year of summit level and for a mile down the slope on either side, without any danger of experiencing a deficiency lege of Physicians of Philadelphia, and one of the Phyof water. In proceeding further down the slopes how

sicians to the Pennsylvania Hospital. ever, the surplus of evaporation and soakage will no Journal; that we have been called upon to record the

This is the third time since the establishment of our longer suffice for such a lockage, and then it becomes decease of worthy and valuable members of our profesnecessary to determine such a diminution of the lift as shall always bring the demand of the locks within the sion in this city. Ewing was taken from the midst of us

just at the moment when his talents and virtues had belimits of the supply. On the calculation for this purpose, I assume the entire length of the canal which is gun to render his name familiar to the public car as a ris. to be fed from the summit at 34 miles, viz. from Erię to GRIFFITTs, at the close of a long life of successful devo

ing and successful physician; the venerable Doctor the nearest point on French creek at which another tion to the humane duties of medicine had crowned him feeder could be taken in. The expenditure of water with reverence and popular respect; and now again, the on this distance for all purposes except lockage would irreproachable Emlen, having slowly surmounted the be 31 feet per second leaving in round terms 28 feet first difficulties in the way of professional reputation, is, per second still available at the extremes, or 14 feet per by an inscrutable decree of Divine Providence, snatchsecond at each. The locks which would be exactly led from his family, his friends; and the art, which he graduated to this supply, would have a lift of 64 feet, seemed born to honour and advance by his industry, but as it is not probable that the locks will often

be press- abilities, and exemplary life and conversation. ed to their utmost working power, or that the water will be reduced to as low a limit as the one used in these ciety, of which he was a valued member and officer, to

We have been commanded by the Kappa Lambda Soz calculations, it will be sufficient to make the extreme locks of 7 feet lift at least, which is better adapted to prepare a sketch of his life for this number of its Jourthe ordinary state of the case.

nal; and in obeying this command; we hope that our Briefly stated then, the mode will be as follows, viz. feelings of personal attachment to him may not lead us for a mile down the slope on each side; of 10 feet lift, stre at least to say nothing more than the simple truth in to make the locks at each end of the summit level, and to make any false estimate of his many virtues; or to

overrate his acknowledged abilities. We sincerely deand afterwards to diminish the lift in a constant ratio per regard to our deceased member: mile, so as to reduce those at the two extremes (of the 34 miles) to 7 feet each, and this will place the whole whose lives have been short of half a century, have been

Such is the nature of our calling; that few physicians, bystem in the most advantageous relation to the supply able to furnish considerable materials for the pen of the of water. The exact height of the Beaver dam summit level 1 others, furnish rare exceptions to the rule; and even their

biographer. BAGLIVI, SAUNDERS, Bichat, and somo do not know, but it is estimated to range somewhere lives are rather to be read in the works they have left as between 620 and 630 feet (above Lake Erie) after a Yeasonable depth of cutting. If we assume it at 628 or the transactions in which they were personally engag

bequests to posterity, than in the events they witnessed; to the top water line; and suppose that five 10 foot locks ed: The peaceful, quiet and unobtrusive tenor of even may be graduated on the first mile of the descent towards Erie; the remainder by the system of diminished a good physician's life, affords, for the most part, but litlifts will require 68 locks with an average lift of 84 feet. de scope for details, or description; since good sense, On the Meadville side, the number will probably not

faithful discharge of duty, charitableness, inflexible inexceed two of the 10 feet lift, and about four with di- tegrity, christian piety, all thát renders a man integer minished lifts to the second feeder, (at the end of the vitæ scelerisque purus, may be possessed in the highest 34 miles) after which about five more will bring the line degree, without affording very striking features for such

an article. What says the poet? to Benner's mill. The practical utility of this system will not greatly

Full many a gem of purest ray serene; differ from that of a system of 10 feet locks except that

The dark unfathom'd caves of ocean beari it will require on the part of each boat about 1-6 or 1-7

Full many a ftower is born to blush unseen; more time in performing the total lockage of the line;

Arid waste its sweetness on the desert air. as to the cost, it will be about ten dollars per foot greai- But those gems that are concealed in the deep caves er. As to the practicability however, so far as the sup- of the sea, and the modest flowers that blossom in desert ply of water is concerned; I have no hesitation in giving places, are not less bright, or sweet; or admirable, be: my opinion in its favor.

cause they are not seen of the world—and those men, An apprehension having sometimes been expressed whose excellent and rare worth might make them the as to the declivity on the Erie side being

too great for admiration of the age, are not the less admirable, if, the lockage, it may be proper to add, that no difficulty with a virtuous modesty or christian humility, they retire will be experienced on this account. It may be in the from the stark stare of the public, preferring to exercise power of the engineer; indeed, in an extreme dase, to in a quieter sphere their excellent virtucs, until confirmconstruct as many as 17 or 18 locks on a mile, and yet ed by time and experience, they with more confidence preserve their perfect independence, and this it is pre- may claim the high places of honour and respect. Vir. sumed is a much more rapid lockage than can be re- tue, in their view, is not a meteor, to flash out brightly quired on any part of the line alluded to:

and straightway be seen no more; for bad men occasion. One further remark may also be made in connection ally do good actions; but it is a steady, and a shining with this subject as regards the Conneaut route, viz: light, whose beam's are mild in the orient, and grow that from the smallness of the supply of water, to be broader and brighter and more beneficial, until they atobtained from French creek, and the necessary length tain à meridian perfection and excellency. Those meh of the feeder, (which is frequently found more expen- only who pursue wisdom, and grow daily in goodness; sive of water than the canal itself,) it is not probable are entitled to our admiration and praise. If such per. that a sufficiency could be commanded on the summit sons do not become what is called great, it is because for the supply of a canal by that route.

circumstances make men great, and not that great men All which is respectfully submitted,

crcate circumstances for themselves. Such genius and D. B. DOUGLASS, Prof. of Eng.

No. 29.

public virtues as are found to be common and almostjects which interest the man of science or the philanthrotrite in times of great political convulsions and revolu- pist, kept his mind on the stretch; and he accumulated tions, ought not to be considered as rare or uncommon a large stock of information, of which he noted down the amor:g men; for multitudes of persons pass their lives in heads in his journal, which we have perused with great vile trades, or squander their time in humble pursuits, who satisfaction, as affording evidence of the diligence with only require favourable circumstances to enable them to which he employed himself even at that period. advance science, adorn the arts, or fill the rolls of fame The declaration of war by the United States against with the history of glorious actions: the same is true of Great Britain, which reached London soon after his arriphysicians, whose greatness oftener depends on contin-val, placed no obstacles in the way of his studies while in gencies than on their own pre-eminent qualifications, The the metropolis. The detention it occasioned gave him occurrence of terrific epidemics, or fortunate appoint- an opportunity, however, of making an extensive tour ments to public stations, are frequently the causes which through England, Ireland, and Scotland, the history of lift men far above their equals in talent or worth. which is detailed with considerable naivete in bis jour

After all it might be asked, what is it that makes men nal. At length the obstacles to his visit to Paris were worthy of imitation when living, and of reverence and removed, and after a residence of fourteen months in regret when dead? He only is admirable who begins the island, he reached that city about the time of the life with unchangeable resolves to discharge his relative, emperor's return from Leipsig. social, and religious duties, and who in the course of that His stay in London, and his frequent access to the solife, brings constantly up to the mark in performance, ciety of the most eminent physicians, surgeons, and lecwhat he had aimed at as the prize in promise. The turers, had increased his stock of knowledge, while the common fault is, that men go on by a sort of rule of elegant society in which he moved, although it never chance-medley, have no fixed or predetermined objects abolished the gravity of his carriage, or the serious and or motives, and yielding to the impulse of events, are sententious style of his conversation, imparted neverever swaying up and down, and come therefore to no- theless to his manners that urbane cast, which is far thing good. A man may begin with a general resolution inore estimable and trustworthy than the false and heartthat he will lead a moral life; but he is not half so apt to less elegance of mere fashionable intercourse. They escape the snares of temptation, as he who firmly deter. were marked by the gentleness, self possession, and termines to eradicate from his soul the particular seeds confidence which belong to the gentleman. of pride, envy, malice, avarice, &c. The very definite- In Paris, though daily attracted by the extraordinary ness of the plan ensures its fulfilment..

events of that wonderful period of history, Dr. Emlen In the death of Dr. Emlen we have suffered the loss continued to attend mainly to the objects of his visit.of a man who understood well, and discharged in a bigh The battles fought in the vicinity filled the hospitals degree, his professional, social, and religious obligations with soldiers suffering under every species of military -who had forced his way by sheer merit, without an accidents, which he carefully studied. igta of false pretences or shrewd policy, into the public As we have no events of his history while in France, favour.

demanding a particular relation, we need here only state Dr. EXLEN was born in Chester county, state of Penn- that after the surrender of the French capital he resylvania, on the 6th of March, 1789. As springing from turned to London in June, from whence he proceeded one of the oldest and most respectable families of the so- to Holland, and came home in the corvette John Adams ciety of Friends, he received, of course, in his early as the bearer of despatches to the Government, after an education, all the advantages which their strict example absence of nearly two years and a half. and sedulous inculcation of good morals could bestow. Soon after his arrival he commenced the practice of His education was chiefly English, but as it was carefully physic, and wis elected one of the physicians to the superintended, he had in it a solid foundation of know. Philadelphia Dispensary; an excellent school of practice ledge, on which he afterwards erected a considerable through which most of the eminent practitioners here structure of various and available information. The flash bave passed. and gewgaw of education were never very desirable nor In 1819 he resigned this station, in consequence of inpleasing in his eyes, inasmuch as he knew them to be creasing occupations; soon after which he was elected unessentials in managing the solid and stern concerns of to be one of the managers, and finally, after the death life; and herein he conformed to the practice of the reli- of his revered friend Dr. Griffitts, became secretary to gious body of which he was a member, who, though that charity, they despise no: many of the elegant pursuits of litera. During the year 1819, when the yellow fever prevailture, and often combine in a high degree the agrerable ed along the water margin of the city, Dr. Emlen was with the useful, are more given to the latter than to the secretary to the Board of Health, and made those obser former. Dr. Enler's acquirements were more solid than vations, of which the fruit is to be found in his valuable specious, and produced in him those excellent fruits paper on yellow fever published in the last number of which have caused his death to be so much regretted. this Journal.

In the year 1808, having resolved to devote himself As member of the Board of Guardians of the Poor, as to the profession of medicine, he placed himself as house physician to the Magdalen Asylun), the Orphan Asylum, pupil with Dr. Pandish of this city, and under his roof, and the Friends' Asylum for the Insane, he established and with his example constantly before him, made rapid broadly and deeply the foundations of a reputation progress in his studies, to which by the testimony of his which tended daily to raise him in public esteem. teacher, he absolutely devoted himself.

He was an efficient and respected member of the Under the roof of Dr. Parrish, and as a member of Kappa Lambda Society; and the Journal of that Assohis family, Dr. EYLEX passed four years, during which, ciation is much indebted to him for the usefulness and having attended the lectures delivered in the Univer- reputation it has attained. He succeeded Dr. Griffitts sity by the professors Rusa, WISTAR, BARTON, PHYSICX, as secretary to the College of Physicians, and to his James, and Coxx, he graduated M. D., and in June, zeal is undoubtedly owing much of the renewed activity 1812, embarked at New-York for England.

and efficiency which marks the present course of that Arrived at London in the month of July, he placed institution. himself in the vicinity of one of the great hospitals, In 1825 he was elected one of the physicians to the where he sedulously endeavoured to acquire the great. Pennsylvania Hospital, an office to which he was annuest amount of practical and surgical knowledge. Attend ally re-elected, a sufficient proof of the assiduity and ance on hospital practice, on lectures by the celebrated ability with which he discharged the functions of that individuals whose reputation had attracted him thither, honourable and very responsible situation. conversation with celebrated men, to the houses of many This excellent man sat not down contented with the of whom he had free and familiar access, and visits to ob. I discharge of his merely professional duties. He had ac

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