INDEX. 
page 
Davy, Sir Humphry, Bart. On the state of water and aeri- 
form matter in cavities found in certain crystals, - 367 
Davy, John, M. D. Some observations of the huffy coat 
of the blood, & c. - - - - 271 
— some observations on corrosive sub- 
limate, - - 357 
Derdham Down, near Clifton, account of some fossil frag- 
ments of bone discovered there, - - 212 
Dip of the magnetic needle, an account of experiments to 
determine the amount of it in London, in August 1821, 1 
different experiments made to 
determine its amount in London, referred to, - 18 
E 
Earle, Henry, Esq. On the mechanism of the spine, 276 
Egg, observations on the changes it undergoes during 
incubation in the common fowl, - - 339 
experiments on it at the end of the first week of in- 
cubation, or about the eighth day, - - 388 
experiments on it at the end of the second week of 
incubation, or about the fifteenth day, - - 392 
experiments on it at the end of the third week of 
incubation, or at the full period of incubation, - 394 
experiments on the egg in its recent and unaltered 
state, ------ 378 
experiments on the changes which take place in the 
fixed principles of the egg during incubation, - 377 
recent, saline contents of it, - - 382 
Electrical light, its great brilliancy in pure dense vapour of 
mercury, - 68 
Electrical phenomena, on those exhibited in vacuo, - 64 
Electricity , some experiments on the relations of electri- 
city to space, as nearly void of matter as it can be made 
on the surface of the earth, 63 
Eye, on its anatomical structure, - - - 76 
F 
Fallows, Reverend Fearon. Communication of a curi- 
ous appearance lately observed upon the moon, - 237 
Faraday, Michael, and James Stodart, Esquires, on 
the alloys of steel, - 
253 
