INDEX. 
Drummond, Lieut., on a means of facilitating the observations of 
distant stations in geodaetical operations, 324. 
E 
Earth. G. B. Airy, Esq. on the figure of, 548. 
Earths , their power of emitting intense light when violently heated. 
330. 
Elasticity of ice. Mr. Revan’s determination of, 304. 
Electricities regarded as transporters of ponderable matter, 417. 
Electric and magnetic rotations. Mr. Babbage on, 494. 
Electrical and chemical changes. Sir H. Davy on their relation, 
3S3. 
— — — states of bodies, how ascertained, 390. 
• combinationsof metals and fluids, 393 et seq. — compound 
ditto, 409. 
F 
Fairlight Down a station for geodaetical observations, 77. 
Faraday, M. Esq. on the mutual action of sulphuric acid and 
naphthaline, and on a new acid produced, 140. 
* - — — — - — on the existence of a limit to vaporization, 484. 
Fibre, muscular, its structure, Mr. Bauer’s observations on, 65. 
Figure of the Earth. Mr. Airy on, 548. 
Foster, Lieut. H., R. N. F. R. S., his account of experiments made 
with the invariable pendulum at Port Bowen, Part IV. 
magnetic observations of the variation, dip and intensity at 
Port Bowen and elsewhere, ibid. p. 73, &c. 
■ observations of diurnal changes in the position of the mag- 
netic needle under reduced directive forces, Part IV. p. 129 et 
seq. (No. 2, 3,) 4, 5. 
comparison of diurnal changes of intensity in the dipping 
and horizontal needle at Port Bowen, IV. p. 177, No. 7. 
observations to determine the amount of atmospheric re- 
fraction at Port Bowen, IV. &c. No. 9. 
— account of the repetition of Mr. Christie’s magnetic expe- 
riments, &c. at Port Bowen, IV. 188, No. 8. 
Formula for computing the mean resulting difference of longitudes 
from a series of observations of signals, 113 — for rates of chrono- 
meters therein used, 115. 
for calculating the effect of annual parallax on the angle 
of position of a double star, 274. 
for the decrement of human life by Dr. Young, 281. 
for the number of deaths among a given number of per- 
sons born in the same year, 288. 
