326 
INDEX. 
Differential equations , linear, theory of, 232. 
, on the solution of, by series, 234. 
, on the solution of partial, by series, 240. 
, on the integration of, in finite terms, 244. 
, illustrations of a general method of resolution, 257. 
E. 
Electrical and chemical actions which take place before and after completion of the voltaic 
circuit, an account of some experiments to test the relation of the, 39. 
Electrolysis of secondary compounds, additional researches on, 1. 
Entozoon folliculorum, a newly discovered parasitic animalcule of the human skin, researches 
into the structure and development of, 305. 
F. 
Fownes (George, Esq.). On the existence of phosphoric acid in rocks of igneous origin, 53. 
Functions, generating, theory of, 261. 
, as connected with equations of differences, 266. 
of partial differences, 268. 
G. 
Gassiot (John P., Esq.). A description of an extensive series of the Water Battery; with an 
account of some experiments made in order to test the relation of the electrical and chemical 
actions which take place before and after the completion of the voltaic circuit, 39. 
H. 
Heat, Animal, miscellaneous observations on, 57. I. On the temperature of the Pelamides, ibid. 
II. On the temperature of Man in advanced age, 59. III. On the effect of air of different 
temperatures on animal heat, 61. IV. On the effect of exercise on the temperature of the 
body, 62. 
I. 
Integrals, Definite, application of the theory of series to the evaluation of certain, 270. 
Insecta, on .he reproduction of lost parts in, 288. 
M. 
Magnetism, Terrestrial, contributions to. No. VI. Observations made on board Her Majesty’s 
Ships Erebus and Terror, from June 1841 to August 1842, in the Antarctic Expedition under 
the command of Captain Sir James Clark Ross, R.N., F.R.S., 87. Deduction of the con- 
stants a and b in the corrections for the ship’s attraction, 88. Deduction of the corrections, 
on account of the ship’s attraction, for the observations of Inclination, 90. Index correction, 
99. Observations of the Inclination, with needles whose poles were reversed, made at Gar- 
den Island, Sydney, 100; at the Bay of Islands, New Zealand, ibid ; on the ice, 101 ; at 
