INDEX. 
page 
Hel lins, the Rev. John. Of the rectification of the conic sections, 448 
Herschel, William, LL. D. Observations on the two lately- 
discovered celestial bodies, - - _ 213 
— Catalogue of 500 new nebulae, 
nebulous stars, planetary nebulae, and clusters of stars ; with re- 
marks on the construction of the heavens, - - 477 
Home, Everard, Esq. The Croonian lecture. On the power of 
the eye to adjust itself to different distances, when deprived of 
the crystalline lens, - - - 1 
— A description of the anatomy of the 
Ornithorhynchus paradoxus, - - 67 
Description of the anatomy of the Orni- 
thorhynchus Hystrix, - 348 
Hornblende , remarks on, - - - 295 
Ho ward, Edward, Esq. Experiments and observations on cer- 
tain stony and metalline substances, which at different times are 
said to have fallen on the earth ; also on various kinds of native iron, 1 68 
Huygens , remarks on his theory of light, - - 381 
I 
Investigation , on the independence of the analytical and geometri- 
cal methods of, - - - 85 
Iron, Siberian Chromate of, remarks on, 50 
— - — native , observations on, - 168, 203 
— attractable oxide of, remarks on, - - 300, 302 
K 
Klaproth , Mr. Remarks on his analysis of the corundum stone 
and the sapphire, - 234 
Kraft and Richmann , Mess. Their law of the increase of heat, 407 
L 
Lecture , Bakerian, - - - - 12 
Croonian, - -t 
Light, on the theory of light and colours, - - 12 
—on its refraction, - 3^5 
- ■ on its dispersion, - 3^5? 37 -* 
on the colours into which it is separable, - 378 
. on the effects of its invisible rays, - - 3 79 
— radiant, remarks on, - 44 
Lime , hyper oxygenized muriate of, remarks on, - - *47 
