ABSORPTION, on, 58.

Achromatic microscope, 70.
Acids:-hydriodic, 191; hydrochloric,
353; suberic, 443; carbonic, 446,
583; arsenovinic, 417; new acid of
bromine, 588.

Æther, on the formation of, 258.
Agassiz (Prof.) on the fossil beaks of
four species of Chimera, 6; on the
fossil fishes found in English collec-
tions, 72; the Wollaston Medal award-
ed to, 310.

Air, influence of its artificial rarefaction
and condensation in some diseases,
62: action of mushrooms on, 82.
Aldehyd, a new compound, 83.
Algebraic equations, 402; elimination,
538.

Alison (R. E.) on the earthquake of

Chili, Feb. 20, 1835, 74.

Ammonia, its action on the chlorides
and oxides of mercury, 495.
Animals, thermometer for determining
minute differences of temperature in,

57.

Antimony, on a supposed new sulphate

and oxide of, 476; crystallized oxi-
chloride of, 585.

Apjohn's (Dr.) formula for inferring the

specific heats of gases, error in, 21.
Araneida, undescribed species of, 481.
Arches, skew, construction of, 299.
Architecture, on the entablature of Gre-
cian buildings, 430; Gothic, 449.
Arsenic, vaporization of, 190.
Arsenovinic acid, 447.
Astronomy-improved astronomical
clock, 71; Newton and Flamstead,
139, 211, 218, 225; the aurora bo-
realis of Nov. 18, 134, 236, 350, 412,
439; Halley's comet, 148, 173; Dr.
Brinkley, 155; Mr. Troughton, 155;
new observatory at Catania, 256; so-
lar eclipse of May 15, 293, 589, 590;
new method of reducing lunar obser-
vations, 373.

Atkinson (J.) on Sir G. S. Mackenzie's

remarks on certain points in meteoro-
logy, 187.

Atmosphere, action of mushrooms on

the, 82; action of plants upon, 415.
Aurora borealis of Nov. 18, 134, 236,
350, 412, 439.

Babington (C. C.) on new British and
European plants, 345.

Babylon and Babel, non-identity of, 506.
Barlow (P.) on the theory of gradients
in railways, 97; on Lecount's trea-
tise on iron rails, 291.

Barlow (W. H.), experiments on Drum-
mond's light, 238.

Barometer, self-registering, 67.
Barytes and strontia, separation of, 259.
Bat, long-eared, habits of, 265.
Bayfield (Capt.) on the transportation
of rocks by ice, 558.

Beck (Dr.) on the geology of Denmark,
553.

Beke (C. T.) on the Persian Gulf, and
on the non-identity of Babylon and
Babel, 506.

Berzelius (M.) on the properties of tel-
lurium, 84; symbolic notation first
introduced by, 101; on Faraday's sup-
posed sulphate and oxide of antimony,

476.

Binney (E. W.) on a patch of red and
variegated marls, 571.

Blackwall (J.), characters of some un-

described species of Araneidae, 481.
Botanical Society of Edinburgh, 440.
Botany :-Indian Gentianeæ, 75; two

species of the genus Pinus, 255; on
the Nephrodium rigidum, 255; va-
rieties of Erica ciliaris and Tetralix,
256; on several new British and
European plants, 345; on a species
of Agave, 346; Cooper's Botanical
Rambles, 411; action of light upon
plants, and of plants upon the atmo-
sphere, 415; on the ovula of Santa-
lum album, 423; W. Sherard and
Dillenius, 424; Botanical Society of
Edinburgh, 440; on the green colour
of plants, 469; on germination, 491.
Brayley (E. W. jun.), note on Mr. Chal-
lis's paper on capillary attraction,

172.

Breithaupt's Mineralogy, 173.
Brewster (Sir D.) on the crystalline
lenses of animals, 195, 416; on the
lines of the solar spectrum, and on
those produced by the earth's atmo-
sphere, and by the action of nitrous
acid gas, 384; on the colours of natu-
ral bodies, 468; on the optical pro-

perty of a substance resembling shell,
545.

Bridges, skew, construction of, 299.
Brinkley (Dr.), notice of, 155.
British Association, official report of the
Dublin Meeting, 58.

Broderip (W. J.) on the habits of the
Chimpanzee of the Zoological Gar-
dens, 164.

Bromine, on its conducting power for
electricity, 130, 400; new acid of, 588.
Brooke (H. J.) on symbolic notation,
101; on thulite and strömite, 169.
Buckland (Rev. Dr.) on the fossil beaks
of four extinct species of Chimara, 4.
C. S. on Whiston, Halley, and the Quar-
terly Reviewer of the Account of
Flamsteed', 225.
Calamary, on the eye of the, 1.
Calculus, new renal, 446.
Caldcleugh (A.) on the earthquake in
Chili, Feb. 20, 1835, 148; account of
the volcanic eruption of Coseguina,
414.

Calorific rays, on, 23, 109, 186, 190, 248.
Cambridge Philosophical Society, 78,

429.

Camden Literary and Philosophical In-
stitution, 431.
Camphor, artificial, 588.

Capillary attraction, 89, 172, 288.
Carbohydrogen, nitrate of, 85.

Carbonic acid, solidification of, 446;
liquid, 583.

Cast-iron beams, Mr. Hodgkinson on,
65.

Catania, new observatory at, 256.
Cauchy's (M.) theory of double refrac-

tion, 104; undulatory theory of light,
7, 24, 112, 204, 247, 271, 305, 413;
new formula for solving the problem
of interpolation, 459.

Cautley (Capt.) on the remains of mam-
malia found in the Sewalik moun-
tains, 575.

Challis (Rev. J.) on capillary attraction
and the molecular forces of fluids, 89;
on the phenomena of drops of oil
floating on water, 288.

Charlesworth (Edw.) on the crag-for-
mation, 529.

Chemical preparations, English, on the
frequent presence of lead in, 267.
Cheverton (Mr.) on mechanical sculp-
ture, 70.

Chili, earthquake of, Feb. 20, 1835, 74,
148.

Chimera, on the fossil beaks of four
species of, 4.
Chimpanzee, habits of the, 161.

Chloride of soda, its use in fever, 64.
Chlorine, on its conducting power for
electricity, 130, 400.

Christie (C. C.) on the aurora borealis
of Nov. 18, 1835, 412.

Chromium, crystallized oxide of, 175;
iodide of, 192.

Cod, crystalline lens of the, 193.
Cold, its effects on the body, 59.
Collision and impact, on, 65.
Colours of natural bodies, 468.
Comet, Halley's, 148, 173.
Compass, steering, 71.

Cooper (E. J.) on Halley's Comet, 148.
Cooper's (D.) Flora Metropolitana, 411.
Cornwall, steam engines of, 20, 67, 136.
Crag formation, on the, 38, 138, 529.
Crichton (Sir A.), account of some fos-
sil remains, 574.

Crystallized surfaces, reflexion from,

103.
Culebrite, 261.

Cuming (H.) on the earthquake at Val-
paraiso, Nov. 1822, 159.
Cunningham (P.) on the attractions of
positive and negative electric cur-
rents, 550.

Cyanogen, compound of, 191.
Daniell (Prof.) on voltaic combinations,
421.

Darwin (F.), geological notes made dur-
ing a survey of the East and West
coasts of South America, 156.
Daubeny (Dr.) on Sir H. Davy's theory
of volcanos, in reply to Dr. Davy, 249;
on the action of light upon plants, and
of plants upon the atmosphere, 415.
Davies (T. S.), geometrical investiga-
tions concerning terrestrial magne-
tism, 418.

Davy's (Sir H.) electro-chemical theory,
subsidiary hypothesis to, 170.
Davy (Dr. J.), Dr. Daubeny's reply to,

249; Prof. Faraday's reply to, 521.
DeCandolle (M.) on the conditions of
germination, reply to, 491.

Del Rio (A.) on Riolite and Herrerite,

261.

Denham (Capt.) on vibration of rail-
ways, 70.

Denmark, geology of, 553.

Deshayes (M.), the Wollaston Donation

Fund awarded to, 311.

Dillenius (Prof.), short notice of, 424.
Don (Prof.), descriptions of Indian Gen-

tianeæ, 75; on two species of the
genus Pinus, 255; on the Nephrodium
rigidum, 255; on varieties of Erica
ciliaris and Tetralix, 256.
Drummond's light, on, 238.
3 M 2

Electro-chemical theory of Sir H. Davy,

subsidiary hypothesis to, 170.
Electro-magnetic rotation, 521.
Entomology: on the compound eyes of
insects, 202; on the yellow fly, 347;
Samouelle's Useful Compendium, 412;
undescribed species of Araneida, 481.
Equations, congeneric surd, 43; alge-

braic, 402; of the fifth degree, 538.
Equinoctial gales, on the, 187.
Eye-of the Sepia Loligo, 1; crystal-
line lens, 193, 195, 416; on the com-
pound eyes of insects, 202.
F. W. Optical experiment, 168.
Faraday (Prof.), researches in electri-
city, 114; Royal Medal awarded to,
150; on the magnetic relations and
characters of the metals, 179; on a
supposed new sulphate and oxide of
antimony, 476; on the condensation
of the gases, in reply to Dr. Davy, 521.
Fever, use of chloride of soda in, 64.
Fishes, on the fossil beaks of four ex-

tinct species of, 4, fossil, 72, 366.
Flamsteed and Newton, 139, 211, 218,
225.

Fluids, molecular forces of, 89.
Forbes (Prof.) on the undulatory theory

of heat, 246; the Keith prize awarded
to, 424; on the mathematical form of
the Gothic pendent, 449; on the tem-
peratures of certain hot springs, and
on the verification of thermometers,
551.
Fossils:-beaks of the Chimera, 4;
fishes, 72; catalogue of fossil fish,
366; vertebræ of fish, 557; vegetable
remains, 574.

Fox (C.) on the construction of skew
arches, 299.

Fox (R. W.) on the magnetic forces,

108.

Fractions, vanishing, 295, 393, 515.
Fresnel's law of double refraction, 104,
248.

Galloway (T.) on the solar eclipse,
May 15, 589.

Gases, specific heats of, 21; condensa-
tion of, 521.
Gentianeæ, descriptions of Indian,

75.

Geological Society, 71, 156, 310.
Geology-on the fossil beaks of four
species of Chimæra, 4; geology of
West Norfolk, 28; discovery of fossil
fishes in the new red sandstone, 72;
on the gradual sinking of the west
coast of Greenland, 73; earthquake
of Chili, 74; on the crag formation,
38, 138, 529; notes made during a
survey of the east and west coasts of
S. America, 156; effects produced
at Valparaiso by the earthquake of
Nov. 1822, 159; effects of earthquake
waves on the coasts of the Pacific,
181; on physical geology, 227, 272,
357; anniversary proceedings of the
Geological Society, 310; catalogue
of fossil fish, 366; geological rela-
tions of certain hot springs, 551;
geology of Denmark, 553; occur-
rence of fossil vertebræ of fish in the
loess of the Rhine, 557; selenite in
the sands of the plastic clay, 558;
transportation of rocks by ice, 558;
syenite veins which traverse the mica
slate of Antrim, 559; geological
structure of Pembrokeshire, 561;
origin of the terms Silurian and
Cambrian systems, 561; on the gravel
and alluvia of S. Wales and Siluria,
566; on a patch of red and variegated
marls, 571; on the streams of sea
water in the island of Cephalonia,
573; on the caves of Ballybunian,
547; fossil vegetable remains, 574;
remains of mammalia found in the
Sewalik mountains, 575; fossil re-
mains of Saurian animals, 577; on
the ossiferous cavern of Yealm Bridge,
579.

German silver, analysis of, 80.
Germination, conditions of, 491.
Gibraltar Scientific Society, 256.
Gothic pendent, on the, 449.
Gradients on railways, 51, 97, 243.
Grant (T. T.) on protecting iron from
the action of salt water, 128.
Graves (Dr.) on the use of chloride of
soda in fever, 64.

Graves (J. T.) on the logarithms of

unity, 281.

Grecian buildings, on the entablature of,
430.

Greenland, on the gradual sinking of
part of the west coast of, 73.

Griffith (R.) on the syenite veins which