482 
Cinnabar, on the crystalline form of, 
Ixxxiv. 
Coal district in the south-west of Eng- 
land, on the structure of, 221. 
Cobalt and nickel, separatien of, 
XXXviii. 
Cochinealin, on, Ixxi. 
Cold, production of, on, xxiii. 
Colouring matter of vegetables, on, 
Ixvi. 
Concretions, animal, on, Ixxv, 
Conybeare, Kev. W. D., on the geolo- 
gical structure of the south-west coal 
district of England, 22]. 
Cooling, on the laws of, xix, 171. 
Cooper, Mr., on the persulphates of 
iron, 298. 
Copper, on, xli—Japan, specific gra- 
vity of, 224—protoxide of, artificial 
formation of, 227~specific heat of, 
167. 
Cork, meteorological journal kept at, 
130, 471. 
Cornwall, observations on, 311. 
Corpora lutea, on, 140. 
Crichton, Mr., on the melting points of 
bismuth, tin, and lead, 223, 
‘Crichtonite, nature of, 382. 
Crystalline furms of bodies, on the 
causes of, Ixxxiv. 
Crystallized surfaces, action of, on 
light, 306, 
Crystals, on the angles of, 413. 
Cyadide of potassium, xxxiv. 
Cyanogen, on, xxv—and hydrocyanic 
acid, M. Vauquelin on, 429. 
Cytisus laburnum, new principle dis- 
coyered in, 468. 
D. 
Dacosta, Mr., analysis of native iron 
by, 65, 
Davy, Dr., on the geology aud minera- 
logy of Ceylon, 241—on the urinary 
organs and secretions of amphibia, 
209, 
Davy, Sir H., verification of the exist- 
ence of perchloric acid by, 71—on 
phosphorus, 210—on the formation 
of mists, 305. : 
Delcros, M., on the influence of the 
time of the day on barometrical mea- 
surements, 197, 
Delphinus gangeticus, on the teeth of, 
303 
Descharmes, M. Pagot, on blue glass 
from iron, 228. 
Dew, on, 385. 
Digestion, phenomena of, 13. 
Dilatation of steam, and other vapours, 
Xiv. 
Drontheim, weather at, 316. 
Doff, Capt., on a mode of preventing 
the dry rot, 67, 
’ 
Index. 
Dulong, M., on the measure of tempera- 
tures, and the laws of the communica- 
tion of heat, 112, 161, 241, 321. 
Dunlop, Mr., on the strength of cast- 
iron shafts, 200, 
Durham coal-field, 223. 
E. 
Eclipse, annular, in the thirteenth 
_century, 475, 
Ecliptic, on the obliquity of, 377. 
Eggs of the pike, on, ixxv. 
Electricity, medical, new mode of ad- 
ministering, 389—of minerals, on, 
lxxxvii. 
Ellagic acid, on, lii, 
Epidermis yegetable, on the formation 
of, 229. 
Ether, vapour of, elasticity of, 216— 
latent heat of, 217. 
Euclase, composition of, 381, 464, 
F. 
Falco, on some species of, 137. 
Ferro-chyazic acid, on, xlvii. 
Fleming, Rev. Dr., on the mineralogy 
of the Red Head, 64. 
Forbes, Dr., meteorological journal at 
Penzance by, 207. 
Frederick, Capt., on Persian manna, 
147, 
G. 
Gallic acid, on, lii—test of, 388, 
Galloway, mineralogical observations 
in, 65, 
Galvanic shocks, on, 886, 
Ganges, geology of its banks, 379. 
Gases, method of determining the speci- 
fic gravity of, 143—dilatation of, 114, 
Gauze: veils, a preventive of contagion, 
383. 
Geognosy, on, Xe. 
Geological soeiety, meetings of, 141, 
221. 
German ocean, on the bed of, 135, 
Germen, on the direction of, 252, 
Gezangabeen, 147, 
Gez, 147, 
Gibraltar rock, nature of, 223. 
Gingoic acid, on, xlix. 
Glass, specific heat of, 167. 
Gosport, meteorological journal kept at, 
AAT. 
Granville, Dr., on a malconformation of 
the uterine system in women, 210. 
Greatorex, Mr., on the barometriecal 
measurement 2 if countaiite 300. 
Grierson, Dr., mineralogical observa- 
tions in Galloway by, 65. 
Grotthuss, Theodor von, on anthrazo- 
thionic acid,. 39, 89—method of 
separating iron from manganese by, 
50—on a combination of carhonate- 
and hydrate of lime, 57. 
