INDE X. 
Mayer (M.) on cobaltie acid, 51; on 
the ashes of various seeds, 106. 
Medlock (F.) on the reciprocal action 
of metals, and the constituents of 
well- and river-waters, 202. 
Metals, on the reciprocal action of, 
and the constituents of well- and 
river-waters, 202 ; on the influence 
of, on radiant heat, 356. 
Methionic acid, on the constitution 
of, 55. 
Meyer (L.) on the gases of the blood, 
263. 
Mineralogy, notes on, 47, 159, 397. 
Minerals, on the artificial production 
of certam, 76; ready method of 
distinguishing certain, 399. 
Monochloracetic acid and compounds, 
Moon, on the photography of the, 227. 
Moseley (H.) on certain alimentary 
formule, 260. 
Newman (Prof. F.) on determinants, 
better called eliminants, 390. 
Nordenskiold(N.)on Demidovite,397. 
Northcote (A. B.)on the brine-springs 
of Cheshire, 457. 
Oolite and ironstone series of York- 
shire, on some comparative sections 
in the, 153. 
rocks of Gloucestershire and 
North Wilts, on the, 154. 
Oxalicacid, onthe constitution of, 269. 
Pebal (M.) on cobaltic acid, 51. 
Perkin (W. H.) on the action of bro- 
mine on acetic acid, 217. 
Phillips (J.) on some comparative 
sections in the oolite and ironstone 
series of Yorkshire, 153. 
Phloretine, on, 276. 
Photo-chemical researches, 220. 
Photometry, on new modes of, 161. 
Plateau (J.) on the figures of equili- 
brium of a liquid mass withdrawn 
from the action of gravity, 1,431. 
Pliicker (Prof. J.) on the magnetic 
induction of crystals, 477. 
Polarizer, description of a new, 552. 
Polygon and polyace, on the k-par- 
titions of a, 68. 
Potter (Prof.) on the principle of 
Nicol’s rhomb, and on some im- 
proved forms of the rhombs for 
rocuring beams of plane-polarized 
fight, 451. 
Quinine, on the optical characters of 
559 
certain alkaloids associated with, 
and of the sulphates of their iodo- 
compounds, 224. 
Rammelsberg (M.) on the composi- 
tion of Beudantite, 159. 
Reeder (R.) on a chronometer com- 
pass, 311. 
Rhomb, on the improved form of 
Nicol’s, and on some improved 
forms of, 451, 552. 
Ritchie (E. S.) on a modified form of 
Ruhmkorff’s induction apparatus, 
239, 480. 
Rocks, on the siliceo-felspathic, of 
the South of Ireland, 47. 
Roscoe (H. E.) on photo-chemical 
induction, 220; on the influence of 
light upon chlorine, 504. 
Royal Society, proceedings of the, 
59, 150, 218, 296, 387, 472, 546. 
Sabine (Maj.-Gen.) on the existence 
of the decimal inequality in the 
solar-diurnal variations, and its non- 
existence in the lunar-diurnal ya- 
riation of the magnetic declination 
at Hobarton, 69; on what the Co- 
lonial magnetic observatories have 
accomplished, 297. 
Salts, on the colour of, in solution, 
418; on the effect of heat on the 
colour of, im solution, 423. 
Schaffgotsch (Count) on the sounds 
produced by the combustion of 
gases in tubes, 541. 
Schiff (M.) on chloride of thionyle, 
277. 
Schischkoff (M.)on fulminic acid, 100. 
Schiiler (M.) on linoleic acid, 106. 
Schunck (Dr. E.) on the occurrence 
of indigo-blue in urine, 288. 
Schwanert (M.) on some decompo- 
sitions of leucine, 273. 
Scrope (G. P.) on the formation of 
craters, and the nature of the li- 
quidity of lavas, 128, 188. 
Seeds, analyses of the ashes of va- 
rious, 106. 
Serpentines of Canada and their as- 
sociated rocks, on the, 388. 
Signalling by the electric telegraph, 
on practical methods for rapid, 59. 
Silica, researches on, 476. 
Siliceo-felspathic rocks of the South 
of Ireland, on the, 47. 
Silicon, on crystallized, 103; on a new 
oxide of, ib. 
