INDEX. 461 
Goldingham (John, Esq.), on the longitudes of Madras, Fort 
William, Bombay, &c. 386, 387 
Greek Fire of the middle ages, conjectures on, 22 —40 
Hemp-seed, sowing of, a preventive of the depredations of cater- 
pillars, 238 
Henry (Mr.), new process of, for extracting strychnine, 443 
Home (Sir Everard), Observations of, on a new species of rhino- 
ceros found in the interior of Africa, 163—165; on the ana- 
tomical structure of the eye, 166; on the changes, which the 
egg undergoes during incubation in the common fowl, 383, 
384; on the placenta, 386 
Howard, (Luke, Esq.), observations of, on the extraordinary 
depression of the barometer, 169 
Hydrogen, (sulphuretted) combinations of, with potassium and 
sulphur, 213—215; and with potash, 215, 216 
Hygrometer, excellent, of Mr. Daniell, 185 
Indigestion, effects of the bile on, 341—344 
Inoculation, benefits of, 453 
Iodine, employed for the relief of cancer, 237 
Iron, magnetic attraction of hot iron between the white and 
blood-red heat, 170.. On the strength of cast-iron, 223, 224. 
Cast-iron pipes preferable to those of lead, for pumps,352, 
353. 
Islands, formed by volcanoes, geological remarks on, 262—295 
Ivory (James, esq.) on the expansion ina series of the attrac- 
tion of a spheroid, 168, 169 
¢ 
Jelly, from salep and magnesia, properties of, 438, 439 
Johnson (Dr.) observations on the genus planaria, 387 
Kirkdale, account of fossil remains discovered at, 170— 
172 
Knowles (John, esq.) observations of, on the advantages of the 
curvilinear form, introduced by Sir R. Seppings, in the con- 
struction of the sterns of British ships of war, 325—332 
Knox (Hon. G.) experiments on the Newry pitchstone, 382, 
383 
Lamarck’s genera of shells, analysis of, 67—86, 298— 
322 , 
Land-slip, account of, 455 
Laplace’s system of astronomy, remarks on, 410, 411. Addi- 
tion of, to a memoir on the theory of elastic fluids, 430 
Lassaigne (M.) ona new acid produced by a distillation of citric 
acid, 422, 423—435, 436 
Lead, use of the sulphate of, in the arts, 230, 231. Observa- 
