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67.4
66.5
69.7
68.0
75.6
66.8
70.2
69.5
66.4
70.2
69.8
74.2

[blocks in formation]

1883.
1884
1885
1886
1887
1888.
1889...
1890.
1891.
1892.
1893.
1894
1895.
1896.
1897
1898.
1899.
1900.
1901.
1902.
1903.
1904.
1905.
1906.
1907
1908.
1909
1910.
1911
1912,
1913
1914
1915
1916
1917

17.4
17.6
20.6
19.6
20.2
16.4
29.1
31.2
25.9
21.4
15.5
29.7
21.8
22.4
23.2
26.2
22.1
26.0
26.1
23.2
25.7
18.9
19.8
32.5
24.9
25.9
27.7
25.1
24.9
15.9
32.7
25.4
26.5
29.0
24.6

22.3
28.3
11.4
22.9
23.2
22.8
18.1
30.9
28.3
25.9
20.6
20.6
16.9
24.1
26.1
26.8
20.4
22.6
18.5
22.2
28.1
23.1
18.9
26.1
19.5
21.3
28.6
22.1
26.6
21.6
18.8
17.7
29.6
19.5
20,2

71.4
73.6
74.2
71.2
72.6
76.6
71.2
70.8
70.0
71.8
71.4
71,2
73.4
69.6
73.1
74.4
73.2
72.1
59.9
69.6
72.5
71.8

65.6
69.9
65.0
67.5
66.5
68.0
66.0
67.7
68.5
69.4
68.8
66.8
71.2
70.0
67.6
71.0
71.6
74.1
71.0
67.6
65.5
68.2
68.7
72.8
68.4
68.8
70.0
69.0
70.9
68.6
70.0
70.5
67.8
73.5
70,5

56.3
65.2
58.3
61.8
57.7
62.2
60.5
60.1
66.2
61.2
58.0
64.9
61.7
60.2
62.3
65.9
60.6
66.1
64.0
53.6
64.4
61.9
63.7
67.3
64.4
67.0
63.5
63.2
62.8
68.4
61.3
61.4
65.6
66.0
60,1

46.6
50.5
49.2
49.6
47.0
43.9
44.0
49.3
48.3
50.0
52.0
52.7
45.4
56.5
52.6
52.1
53.5
57.9
51.4
43.1
52.5
48.4
52.4
51.2
47.9
52.9
47.7
53.1
50.7
53.5
54.0
55.4
52.6
58.0
45.9

47.7
48.4
47.9
47.4
48,2
45.9
47.2
48.8
46.7
48.8
48.1
47.9
49.4
47.8
49.7
46.5
48.5
49.5
45.0

Monthly averages

23.8

22.7

70.8

71.0

62.5

50.6

47.4

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Inches.

Inches.

Inches.

1882.
1883
1884.
1885
1886
1887
1888.
1889.
1890.
1891.
1892.
1893.
1894
1895.
1896..
1897
1898.
1899.

1.44
2.01
0.61
0.95
2.97
1.04
0.25
1.45
1.57
0.88
3.71
2.71

Inches.

3.69
4.12
2.01
2.49
2.92
2.01
2.88
7.47
4.26
4.31
3.95
3.08
1.77

Inches.

0.55
0.73
0.97
0.76
1.24
1.35
1.24
1.62

1

u

0.48
1.83
1.07
1.13
0.18
0.78
2.99+
2,16
1.44
0.57
1.62
2.21
0.96
1.19
0.64
1.74
0.37
1.43
0.72
0.86
1.81
0.80
0.40
1.46
1.89
0.68
0.94
0.87
0.91
0.20
3.88
0.98
2.34
2.69
0.72

2.28
0.21
0.33
0.30
2.42

1.58
0.83
1.26
4.13
1.37
3.09
3.28
2.20
1.63
0.67
2.59
2.43
1.36
0.41
1.90
2.03
1.12
0.95
4.43
1.92
2.60
1.67
2.05
2.08
2.42
3.28
3.20
4.56
3.24
3.41
3.40
3.10
0.64
3.40
2.92

4.45
2.49
1.58
1.92
0.46
2.79
1.21
5.49
0.49
4.04
4.92
7.03
2.88
2.31
2.19
1.90
1.69
1.71
3.80
2.84
0.23
4.04
2.01
4.24
1.82
3.57
2.83
3.45
1.36
7.27
2.68
4.00
2.41
5.6)
3.74

1900.

Inches,

2.37
3.47
1.44
5.02
2.86
3.03
4.02
1.98
4.34
3.16
4.77
5.38
1.22
2.66
3.33
1.27
3.60
1.05
1.75
5.52
2.41
7.21
2.56
5.44
3.68
1.35
1.79
2.21
5.47
3.36
2.21
1.65
6.05
5.90
3.47
1.99

3.71
3.16
2.37
1.71
1.45
2.07
4.33
7.77
3.37
8.78
5.31
2.34
1.96
2.17
1.55
2.51
2.09
3.24
2.69
2.57
5.83
7.07

Inches.

0.62
2.10
1.67
2.88
1.79
1.74
3.47
3.32
4.54
2.65
1.34
1.59
3.59
0.72
2.26
0.73
3.83
2.69
3.65
1.35
2.32
4.19
2.06
3.69
3.56
2.48
2.73
1.18
1.73
2.37
1.42
4.03
1.55
4.44
1.41
4.37

Inches.

1.22
1.54
1.01
·1.36
3.48
1.58
2.02
3.44
2.40
0.74
1.67
1.09
0.43
2.31
2.18
2.53
2.03
1.36
6.13
2.09
0.74
1.63
0.26
1.32
1.40
2.78
0.88
0.56
0.62
1.41
1.48
2.41
1.08
1.93
1.83
0.36

1901
1902.
1903
1904.
1905.
1906.
1907.
1908.
1909
1910
1911.
1912
1913
1914.
1915
1916.
1917

0.66
1.11
1.03
0.27
0.53
0.03
1.12
1.68
0.53
0.24
0.95
0.11
0.15
1.77
1.05
0.95

3.29
0.72
1.56
0.47
2.49
0.71
1.39
0.33
1.46
0.78
3.37
0.74
0.38
1.42
1.84
1.54
1.89
0.43
0.49
0.38
2.08
1.13
0.77
1.13
1.23
1.49
0.46

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Averages

1.28

1.13

2.34

3.01

3.51

3.30

2.50

1.70

1.21

TOTAL PRECIPITATION: RAINFALL AND SNOW REDUCED TO EQUIVALENT RAINFALL, 1916-17.

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INDEX.

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Page.

45
158
172
165
170

173
. 166, 167

160
165
171
170
174
157
168
172
116
109
109
17

35
449, 452, 453, 454, 455

10
18

63
561, 628

413

A.
Acidity, soil, nature of..
Actinomycetes, description of...

in soil, characteristics of colonies.

classification.
dark brown type..
distribution,
growth on glycerin and other media.
history of studies . ;
morphology
pink-spored type.
potato-scab type
significance

study of ..
types most abundant in soil.

uncommon types in soil.
Agar for qualitative bacterial soil analysis.

formula for plating soil bacteria.

vs. gelatin for plating soil bacteria.
Agronomy Department, notes on work of.

report of...
Albion, spraying experiments at.
Anderson, Rudolph J., absence on military service.
Animal Industry Department, notes on work..

report.
Anthony, R. D., bulletins by.
Aphides, newly hatched, control in apple orchards.
Aphides (See Plant lice).
Aphis avenae, identification characters.

pomi, identification characters.

sorbi, identification characters..
Apple orchards, plant lice in, notes on.
Appleton, spraying experiment at...
Artichoke, globe, botanical classification.

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cultural details....
culture of..
history of ..
insect and fungus troubles of.
uses of...
varieties of ....
winter protection of .
yield of plants.

*

622
.28, 619

620
626
626
620
626
621

.

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B.
Babcock glassware, tests of ...
Bacillus cereus, characteristics of..

megatherium, characteristics .
mycoides, characteristics..

simplex, characteristics.
Backus, F. L., spraying experiment in orchard of .
Bacteria, classification card in study of .......
control in market milk by microscope count.

plan of work..
results at Geneva..

results at Hobart, N. Y
in milk, agar colonies and microscope count.

counting..
data from quantitative studies..
effect of milking machines on.
lactose agar colonies and microscopic count.
methods for quantitative study.

plate counts and microscope counts.
soil, agar for qualitative study.

methods adapted to study...

plating methods..
Bacteria, non-spore-forming, distribution in soil

history of studies.
in soil..
study of ..

significance in soil..
number in milk .
soil, applicability of group number in study.

microscopic examination.
plating for qualitative analysis.

technic for qualitative study.
Bacteria, spore-forming, in soil. .

significance in soil
Baer, William W., absence on naval service .

bulletin by
Barker, J. F., bulletins by...

resignation as Agronomist.
Beans, field, culture of..

desirable varieties

troubles of..
Beckwith, John, spraying experiment in orchard of
Blackheart and aeration of potatoes.
of potatoes stored in sealed jars.,

from shipping conditions.
in storage.

Page.

30
134
132
134
136
447
117
244
246
251
247
209
685
207
261
222
204
266
116
102
103
150
143
143
141
154
200
118

21
114
116
127
138
10

35
35, 47, 55

9
651
654

653
451, 455

277
281
315
675

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Page.
Blackheart of potatoes, notes on.

22
previous work.

279
produced at low temperatures.

284
relation to seed potatoes..

317
Bosworth, Lloyd A,, service as Assistant Chemist.

10
Botrytis allii cause of neck-rot disease of onions.

350
description of...

350
Breed, R. S., bulletins by.

181, 244
Brew, James D., bulletins by.

200, 244
Buchholz, A. B., assistance in spraying experiments.

443
Building needs of Station ....

13
new, erection of.

13
Bulletins, edition of ...

15
for 1917, list of .

31
Bulletins reprinted, No. 429, 63; No. 431, 413; No. 432, 561; No. 433, 586; No. 435,

619; No. 436, 277; No. 437, 319; No. 438, 181; No. 439, 200; No. 442, 460; No.

443, 244; No. 444, 483; No. 445, 9.
Bulletins reprinted, Popular: No. 429, 661; No. 432, 666; No. 433, 671; No. 436,

675; No. 437, 680; No. 439, 685; No. 442, 694; No. 443, 698.
Bulletins reprinted, Technical: No. 57, 91; No. 58, 127; No. 59, 141; No. 60, 157;

No. 61, 47; No. 62, 55; No. 63, 628.
Burrows, Lynn, spraying experiment in orchard of ..

455

1

C.
Carbonates, apparatus for determination of.
Cherry leaf-beetle, activities during 1916...

adult of....
artificial control of ...
bibliography of..
classification,
coloration changes.
development of larva .
directions for control
dissemination of .
distribution of...
duration of life.,

. 17, 55

504
509
545
553
486
511
530
550
541
492
526
506
510
501
511
490
511
486
526
507

egg of..

emergence of adults..
factors favoring dispersion.
fall feeding habits of adult.
food plants...
hibernation of adult.
historical notes.
incubation and hatching of egg.
larva of...

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