INDEX. 
page 
Gas hydrogen , its effects on spontaneous light, - - - 412 
- — — carbonic acid , its effects on spontaneous light, - - 416 
sulphurated hydrogen, its effects on spontaneous light, - 418 
nitrous , its effects on spontaneous light, - - 420 
Glasses, trials to set aside darkening ones, in viewing the sun, . 356 
H 
Heat, on its emission from the sun, - 265, 354 
Herland copper mine, discovery of silver in it, - - 159 
Herschel, William, L. L. D. Observations tending to inves- 
tigate the nature of the sun, in order to find the causes or symptoms 
of its variable emission of light and heat; with remarks on the 
use that may possibly be drawn from solar observations, - 265 
Additional observations tending to investi- 
gate the symptoms of the variable emission of the light and heat of 
the sun; with trials to set aside darkening glasses, by transmitting 
the solar rays through liquids ; and a few remarks to remove ob- 
jections that might be made against some of the arguments con- 
tained in the former paper. - 354 
Hitchi ns, the Rev. Malachy. Account of the discovery of 
silver in Herland copper mine, - - - 159 
Home, Eve rard, Esq. The Croonian lecture. On the irrita- 
bility of nerves, - - 1 
Observations on the structure, and mode of 
growth, of the grinding teeth of the wild boar, and animal incognitum, 319 
Hulme, Nathaniel. A continuation of the experiments and 
observations on the light which is spontaneously emitted from 
various bodies; with some experiments and observations on 
solar light, when imbibed by Canton’s phosphorus, - 403 
I 
Ice, manner of procuring it transparent, - 137 
Indentations of the sun, observations on, - - 268,289 
Iron, remarks upon its habitudes, - 224 
* arseniates of, description of, - - 188 
analysis of, - - -218 
Jaw , locked, account of a case of, - - 2 1 
Jaws, tradition respecting those of the first man, - - 324 
K 
Knight, Thomas Andrew, Esq. Account of some experi- 
ments on the ascent of the sap in trees, - - - 333 
Lamb , account of a monstrous one, 
mdccci. 3 N 
139 
