INDEX. 
Lecture , Bakerian, - - - _ 23 
— — — — Croonian , - ± 
Libellula, remarks upon its eye, - - - - 81 
Light , on its emission from the sun, - - 265, 354 
— — solar , experiments on, when imbibed by Canton’s phosphorus, 422 
— - spontaneous , continuation of experiments on, - 403 
— — — effects of common air on it, - - 404 
— — — — effects of oxygen gas on it, - - 407 
— — _____ — - — effects of azotic gas on it, - - 409 
effects of hydrogen gas on it, - - 412 
— effects of carbonic acid gas on it, - 4x6 
effects of sulphurated hydrogen gas on it, 418 
— — — effects of nitrous gas on it - - 420 
effects of a vacuum on it, - - 421 
Liquids, on viewing the sun through them, - - 356 
Lowitz , Mr. Account of his experiments on artificial cold, - 120 
— — - — — - remarks on his method of purifying potash, - 197 
M 
Mayer , Tobias. Remarks on his reflecting circle, - 363 
Membrana tympani, on the effects arising from its destruction, 435 
Mendoza Rios, Joseph de, Esq. On an improved reflecting 
circle, - - - 363 
Monstrous lamb, account of one, - 139 
Muriate of lime, on the production of artificial cold by it, - 120 
— method of preparing it, - - - 123 
N 
Nerves, on their irritability, - - - 1 
case in which one was divided, - - 2, 20 
experiments on them, - - - - 1 1 
Nodules of the Sun, observations on, - - 267,286 
Nomenclature, chymical, remarks on, - - 195 
O 
Openings of the Sun, observations on, - - 267, 270 
Optometer, description of an instrument so called, - 34 
Otaheite , tradition there, respecting the jaws of the first man, 324 
Ovid , remarks on his description of the wild boar, - 329 
P 
Partridge, remarks on its crystalline lens, - - 76 
Phosphate of lime, manner of preparing, - - 379 
Phosphorus, Canton's, experiments on solar light imbibed by it, 422 
improved preparation of it, - 426 
