558 
Heat and pressure, on the slow ac- 
tions produced under the combined 
influence of, 76. 
, radiant, on the influence of 
metals upon, 356. 
Heintz (Dr.) on the composition of 
olive oil, 106. 
Herapath (Dr. B. W.) on the optical 
characters of certain alkaloids, 224. 
Hlasiwetz (M.) on phloretine, 276. 
Hodgkinson (E.) on the strength of 
pillars of east iron, 150. 
Hoffmann (Dr. R.) on monochlor- 
acetic acid, 56. 
Hopkins (T.) on the action of aqueous 
vapour in disturbing the atmo- 
sphere, 387. 
Hunt (T.S.) on the serpentines of 
Canada and their associated rocks, 
388. 
Huxley (T. H.), observations on the 
structure of glacier ice, 241. 
Ice, on the plasticity of, 548. 
Indigo-blue, on the occurrence of, in 
urine, 288. 
Induction apparatus, on, 160, IBY 
239, 319, 323, 480. 
Integral calculus, on methods in, 507. 
Integrals, multiple and definite, on 
the calculation of the numerical 
values of a certain class of, 375; 
on the theory of definite, 550. 
Iodides, on the decomposition of, by 
nitric acid, 54. 
Iron, on the strength of pillars of 
cast, 150; on the influence of struc- 
ture upon the magnetic properties 
of, 553. 
-——, pig, on the chemical changes 
which it undergoes during its con- 
version into wrought iron, 165. 
Isochronism of the circular hodo- 
graph, on Sir W. R. Hamilton’s 
theorem of the, 427. 
Jevons (W. 8S.) on the cirrous form 
of cloud, 22 ; on a sun-gauge, 351. 
Johnson (R.) on the changes which 
pig-iron undergoes in its conversion 
into wrought iron, 165. 
Joule (J. P.) on heat, and the con- 
stitution of elastic fluids, 211; on 
the thermo-electricity of ferrugi- 
nous metals, and on the thermal 
effects of stretching solid bodies, 
226. 
Kekulé (M.) on fulminic acid, 100. 
INDEX. : 
Kirkman (Rev. T. P.) on the k-par- 
titions of a polygon and polyace, 
68 
Knoblauch (Prof. H.) on the influence 
of metals upon radiant heat, 356. 
Kobell (M. von) on the behaviour of 
the native metallic sulphurets to- 
wards muriatic acid under the in- 
fluence of galvanism, 399. 
Kopp (H.) on the calculation of va- 
pour-densities, 234. 
Kubel (M.) on the constitution of 
leucine, 274. 
Laplace’s functions, on the equation 
of, 65. 
Lavas, on the nature of the liquidity 
of, 128, 188. 
Lead, on the action of, on well- and 
river-waters, 203. 
Le Roux (F. P.) on the influence of 
structure upon the magnetic pro- 
perties of iron, 553. 
Leucine, on some decompositions of, 
273: 
Light, on the measurement of the 
chemical action of, 161; on the 
influence of chlorme upon, 321, 
504 ; on the relations of gold (and 
other metals) to, 401, 512. 
Limpricht (H.) on the conversion of 
aldehydes into alcohols, 58. 
Linoleic acid, on, 106. 
Liquid mass, on the figures of equi- 
librium of a, withdrawn from the 
action of gravity, 1, 431. 
nia (W.) on spherical geometry, 
35. 
Magnesium, on the preparation and 
properties of, 53. 
Magnetic bodies, on the optical pro- 
perties of, 78, 236. 
declination at Hobarton, on the, 
observatories, on what the Co- 
lonial have accomplished, 297. 
SE mt of crystals, on the,477, 
Marcet (W.) on the immediate prin- 
ciples of human excrements in the 
healthy state, 310. 
Margaric acid, on the artificial pro- 
duction of, 105. 
Martyn (Dr. P.) on the function of 
the thyroid body, 69. 
Maxwell (Prof. J. C.) on the pereep- 
tion of colour, 40. 
