Natica Flemingiana ?, 57.

rostalina, 56.
Neuropteris arguta, 79.
Nevada Territory (Washoe Silver Re-
gion, U.S.), Mr. Blake on the geo-
logy and mines of the, 317; geology
of the, 318; hot springs of the,
322; physical geography of the,
317; principal mines and veins of
the, 324.

New Red Sandstone of Hobart, Tas-
mania, 467.

New South Wales, Sir P. de M. Grey
Egerton on Ichthyolites from, 1.
Nigg to Cambus-Shandwick, section
from the, 437.

Nile Valley, geology of the, 6; gra-
nitic rocks of the, 11; physical cha-
racter of the, 7; sections of the, 13;
terraces of the, 9.

Nova Scotia, geology of part of, 333.
Nubia, alluvial heaps of lateral water-

courses of, 8; freshwater shells on
the terraces in, 12; junction of
granite and sandstone in, 9; relation
of temples and caves to the river-
level, 10; sandstone and drift of,
7; teeth of Hippopotamus from,

Peak district, 252; view of rocks on
the, 253.

Pebble-bed of Budleigh Salterton, Mr.
Vicary on the, with a note on the
fossils by Mr. J. W. Salter, 116,

283.
Pebble-bed of Budleigh Salterton, sec-
tions of the, 283, 284.
Pecopteris polydactyla, 80.
Peeblesshire, sketch-map of the glacier-
valleys of, 454.

Penrith sandstones, or Lower Perm-
ian, 148.

Pericosmus latus, 487.

Permian rocks of the north-west of

England and their extension into
Scotland, Sir R. I. Murchison and
Prof. Harkness on the, 144.
Permian rocks, Lower, of Barrow-
mouth, near Whitehaven, 150; Fur-
ness, 151; Scotland, 153; the Valley
of the Eden, 148.

Permian rocks, Middle, of Barrow-

mouth, near Whitehaven, 155; Fur-
ness, 156; the Valley of the Eden,
154.

Permian rocks, Upper, of Furness,

158; St. Bees Head, 158; the Valley
of the Eden and Corby, 157.
Permian roofs of blanks, 215.
Permian series of Durham, Mr. Kirkby
on remains of fish and plants from
the Upper Limestone of the, 345.
Permian strata at Barrowmouth, 151;
from Park to Furness Abbey, sec-
tion of the, 152; in the Eden Valley,
149; of Durham, section of the,
347.

Phacops incertus, 291.

Phila, ravines, with alluvium and
freshwater shells, east of, 14.
Phlebopteris propinqua, 80.

date relatively to the existence of
man and of certain of the extinct
Mammalia, 118.

Porambonites, 295.

Portage Brulé to the Gulf of St. Law-
rence, section of the canoe-route
from the, 129.
Porth-y-Rhaw, geological sketch-map
of, 240; section of east side of,

240.

Post-pliocene deposits of Tasmania,
469.

Pottery coal-field to Beclow Hill, sec-
tion from the, 265.

Pottery, Wetley, and Cheadle coal-
fields, 264.

Powrie, J., Esq., on the fossiliferous
rocks of Forfarshire and their con-
tents, 413.

Prenaster excentricus, 487.
Protospongia fenestrata, 238.
Psammechinus Duciei, 475.
Scillæ, 475.

Pseudaxinus trigonus, 299.
Pteraspis, Mr. Lankester on the dis-
covery of the scales of, with some
remarks on the cephalic shield of
that fish, 194.

Pterophyllum angustifolium, 77.
comptum, 77.
medianum, 77.
minus, 78.

Purpura umbilicata, 53.
Puy-Notre-Dame to Dové, section
from, 202.

Pygorhynchus Spratti, 491.
Vassali, 479.

Pyrula cochlidium, 52.
Pythina Semperi, 61.

Quaternary roofs of blanks, 200.
Ramsay, Prof. A. C. (President), ad-
dress on presenting the Wollaston
Medal to Sir Roderick Murchison,
xxxi; and to Dr. Falconer, on
handing to him the residue of the
Wollaston Donation-fund for M.
Deshayes, xxxii; Anniversary Ad-
dress, February 1864, xxxiii; No-
tices of deceased Fellows:-Mr. L.
Barrett, xxxiii; Marquis of Lans-
downe, xxxiv; Mr. John Taylor,
XXXV; Mr. S. P. Pratt, xxxvii ;
Prof. Eilhard Mitscherlich, xxxviii;
Rev. S. Hislop, xxxix; breaks in
the succession of the British Me-
sozoic strata, xl; commencement of
the prevalence of Secondary genera
in Carboniferous times, xli; table
showing the comparative numbers of
Mollusca in the formations between

the Lower Silurian and Cretaceous
epochs, xlii; New Red Sandstone
series, xliii; St. Cassian and Kössen
beds, xliv; New Red Marl or Keu-
per beds, xlvi; Westbury or Bone-
bed series, or Kössen and Rhætic
beds, xlvii; Lias, xlviii; table
showing the upward passage of
species through the zones of the
Lias, xlix; Oolitic strata, li; sum-
mary of the numbers and percent-
ages of species that pass from one
formation to another of the Oolitic
and Cretaceous series, lii; Inferior
Oolite, liii; Great Oolite, liv; tables
showing the numbers and percentage
of species that pass from one forma-
tion to another in the Oolitic and in
the Cretaceous series, liv; Purbeck
and Wealden strata, lvi.
Rantja plateau to the Gunung Tjeri-
mai, Java, section from the, 49.
Ravensden to Hammer Hill, through
Summerhouse Hill, section from,

185.

Recent geological changes in Somer-
setshire, Mr. Poole on, 118.
Red Crag, Mr. S. V. Wood on the,
121; Prof. Huxley on a new Ceta-
cean fossil from the, 388.

Red Rock of Hunstanton, Mr. Seeley
on the, 327; section of the, 329.
Reindeer-period in the south of France,
bone- and cave-deposits of the, 444.
Reptilian remains from Central India,
117, 280.

Reptiliferous rocks and footprint-
bearing strata of the north-east of
Scotland, Prof. Harkness on the, 429
Reptiliferous sandstones, paleontolo.
gical evidence of the, 442.
Rhætic beds and White Lias of So-
merset, Mr. Boyd Dawkins on the,
396; range of fossils of the, 406,
407; thickness of the, 408; to the
east of Watchet, section of the, 400;
to the west of Watchet, section of
the, 399.

Rhynchonella, spp., 296, 297.
Roberts, G. E., Esq., on the remains
of Bothriolepis from the Upper

Devonian Sandstones of Elgin, 198.
Rochelle, near Alais, section at, 212.
Rocks occurring at Bridgnorth, 137;

in the Severn Valley drift, 134.
Roofs and floors of missing formations,
in their epochal relations, syn-
optical view of the, 227; table
showing the stratigraphical rela-
tions of the, 228.

191.

Scindian fossil corals, Dr. P. Martin
Duncan on, 66.

Scotch granites, analyses of, 277.
Scotland, former existence of glaciers

in the south of, 452; Lower Permian
rocks of, 153; reptiliferous rocks
and footprint-bearing strata of the
north-east of, 429.

Scutella subrotunda, 479.
Section near Albarasin (between Madrid
and Alicante), 211; at Arisaig (Nova
Scotia), 336; at Barrowmouth, 150;
from Beclow Hill to the Pottery
coal-field, 265; through Bicking-
ton, 446; from the Biddulph Trough
to the River Dove and to Mixon,
260; from the Black Mountain to
the River Lagan, Belfast, 104; from
Bigler Lake to Carson River, 321;
from Birnie to Causie, 431; of the
Silurian basin of Bohemia, 214;
from Bosley Minn to Grin Hill,
256; showing forced arrangement
of blocks of limestone, &c., in
Boulder-clay, 125; at Bridgnorth,
136; of the pebble-bed of Budleigh
Salterton, 288; from Burghead to
Lossiemouth, 435; south of Bux-
ton, 256; west of Buxton, 258;
from the mountains beyond Carson

River to Lake Bigler, 321; from
Causie to Birnie, 431; at Cave
Hill (Belfast), 105, 108; showing
Coal-measures lying unconformably
on Lower Silurian, 217; at Colin
Glen (Belfast), 105, 108, 109; from
Cambus-Shandwick to the Nigg,
437; of the Cornstock lode, 325;
at Derr, 13; from the River Der-
went to Marple, 251; from the
River Dove to the Biddulph Trough,
260; from Dové to Puy-Notre-
Dame, 202; of the Permian strata
of Durham, 347; of the Eden Val-
ley, 149; north of Elgin, 433;
south of Elgin, 430; on the Find-
horn, 432; through the Freming-
ton clay-deposit, 446; of Fulwell
Hill, 347; from Furness Abbey to
Park, 152; at Gharbeer, 13; of the
Goldsitch basin, 262; from Grin
Hill to Bosley Minn, 256; from
the Gunung Tjerimai to the Rantja
plateau (Java), 49; from Hammer
Hill, through Summerhouse Hill
to Ravensden, 185; of the Red
Rock of Hunstanton, 329; at Hunt-
worth, near Bridgwater, 119; from
the River Lagan to the Black
Mountain (Belfast), 104; from the
Lancashire coal-field to the York-
shire moors, 251; of the Loire and
Saône coal-basin, 215; from Los-
siemouth to Burghead, 435; from
Marple to the River Derwent, 251;
at Maneche, 17; from Massa to
Monte San Pellegrino, 203; from
the Grand Côteau de Missouri to
Lake Winnipeg, 127; from Mixon
to the Biddulph Trough, 260; of
the valley of the east branch of
the Moisie, 123; at Mullinger, 446;
from the Nigg to Cambus-Shand-
wick, 437; from Park to Furness
Abbey, 152; from Monte San Pel-
legrino to Massa, 203; from the
Portage Brulé to the Gulf of St.
Lawrence, 122; at Porth-y-Rhaw,
240; from the Pottery coal-field
to Beclow Hill, 265; from Puy-
Notre-Dame to Dové, 202; from
the Rantja plateau to the Gunung
Tjerimai (Java), 49; from Ravens-
den to Hammer Hill, through Sum-
merhouse Hill, 185; at Rochelle,
near Alais, 212; from the Sagra
Sierra to the Sierra Morena, 199;
at Salisbury, 191; of the Saône and
Loire coal-basin, 215; of the
Severn Valley, 132; in the Sierra

de Guadarrama, 206; from the
Sierra Morena to the Sagra Sierra,
199; of the Sierra Morena, 200; at
Snake Lane, 403; in the Staley bridge
district, 250; at Steamboat Springs,
322;
from the Gulf of St. Law-
rence to Portage Brulé, 129; from
Sillé le Guillaume to St. Pavace,
214; at St. Petersburg, 445; at
Stroud, 379; from Solva to White-
sand Bay, 239; at Turn Hill, 404 ;
east of Watchet, 400; west of
Watchet, 399; at Whitehead, 106;
from Whitesand Bay to Solva, 239;
of the Valley of the Wiley (Salis-
bury), 191; from Lake Winnipeg to
the Grand Coteau de Missouri, 127;
at Woodburn, 106; from the York-
shire moors to the Lancashire coal-
field, 251.

Section (vertical) of the Coal-mea-
sures of New South Wales, 5;
Magnesian Limestone of Fulwell
Hill, 347; Millstone-grit, 267; Per-
mian strata of Durham, 347.
Sections (comparative) of the Mill-
stone-grit, 267.

Seeley, H., Esq., on the Ammonites of

the Cambridge Greensand, 166; on
the Hunstanton Red Rock, 327.
Selsileh, 17.

Severn Valley, drift-deposits of the,
130; at New Buildwas railway-
bridge, section across the, 132; at
Bridgnorth, section of the, 136.
Severn Valley drift, fossil corals found

in the, 135; fossil shells found in
the, 135; list of shells from Stret-
hill in the, 140.
Siderastrea grandis, 40.
Sierra de Guadarrama, section in the,
206.

Sierra Morena, section showing two
great blanks in the succession, 200;
to the Sagra Sierra, section from the,
199.

Siliceous corals, 364.

Sillé le Guillaume to St. Pavace, sec-
tion from, 214.

Silurian basin of Bohemia, section of

the, 214; system of Hobart, 469.
Silurian roofs of blanks, 220.
Siwalik series of the Himalayas, 385.
Skene, glacier-moraines of Loch, 455.
Sketch-map of the glacier-valleys of
Peeblesshire, 454.

Sketch-map of Porth-y-Rhaw Har-
bour, 240.

Sketch of granite-masses near Carson,

321.

Sketch of moraines in Upper Talla
Valley, 457.

Sketch of rocks on the Peak, 253.
Snake Lane, section at, 403.
Solen, sp., 301.

Solenastræa Verhelsti, 40.

Somersetshire,

recent geological

changes in, 118; Rhætic beds and
White Lias of western and central,
396.

South of England, Oligocene deposits
of the, 97.

Spatangus delphinus, 488.
ocellatus, 487.

- pustulosus, 489.
Sphenopteris Jugleri, 79.
modesta, 79.

Spirifer antiquissimus, 295.
Davidis, 296.

Staffordshire, Millstone-grit of, 242.
St. Bees Head, Upper Permian of,
158.

Steamboat Springs, section across, 322.
Stephanocœnia intersepta, 27.

St. Pavace to Sillé le Guillaume, Le
Mans, section from, 214.

St. Petersburg, granite and granitic
detritus near, 444.

Stroud, deposit containing flint im-
plements and land and freshwater
shells at, 378; section at, 379.
Stylonurus, 415.
Stylophora affinis, 27.

raristella, 27.

Suffolk and Essex, Red Crag of, 121.
Swan, W. R., Esq., on the Devonian
rocks of the Bosphorus, 114.
Swedish granite and gneiss, analyses

of the constituent minerals of, 279.
Table of fossils of the Avicula-contorta
Zone, 107; Javan fossils, 50, 64, 65;
results of analyses of Black Mica of
Swedish granite and gneiss, 279;
Donegal Syenites, 276; Scotch gra-
nites, 277; White Mica of Swedish
granites, 280; the chemical com-
position of Donegal granites, 269;
mean chemical composition of the
constituent minerals of the granite
of Donegal, 269; the Budleigh Sal-
terton fossils, 288; the calculated
mineralogical composition of the gra-
nites of Donegal, 273; of Scotland,
278; the forms of mineralization of
corals, 363; the oxygen constituents
of Donegal granites, 272; oxygen
proportions of the constituent mine-
rals of the granite of Donegal, 270;
the stratigraphical distribution of the
fossil Echinoderms of Malta, 490;