610 
INDEX. 
Belcher (Edward, Commander R.N.). An account of the magnetical experiments made 
on the western coast of Africa, 1830-1, 493. 
Bell, (Sir Charles, K.G.H.). On the organs of the human voice, 299. 
C. 
Castor oil , remarkable change in, on the surface of the water in the cistern of the 
water-barometer, 571. 
Circulation of animals, during hybernation, 351. 
D. 
Daniell (J. F. Esq.). On the w r ater-barometer erected in the hall of the Royal Society, 
539. 
Davy (John, M.D.). Some account of a new volcano in the Mediterranean, 237. 
-Further notice of the new volcano in the Mediterranean, 251. 
-An account of some experiments and observations on the Torpedo 
(.Raia Torpedo, Linn.), 259. 
Digestion of animals, during hybernation, 352. 
Du Buat (The Chevalier), his experiments on pendulums swung in air and in water, 458. 
E. 
Earth and Venus, on an inequality of long period in the motions of, 67. 
Electric currents, induction of, 126. 
Electricity, experimental researches in, 125. 
Electro-tonic, a term used to designate a new electrical state or condition of matter, 139. 
Epoch of the Earth's longitude, importance of the long inequalities in, 121. 
F. 
Faraday (Michael, Esq.). 
Second series. 163. 
Experimental researches in electricity, 125, 163. 
The Bakerian lecture. Experimental researches in electricity. 
G. 
Graham Island, on an error respecting its site and origin, 255. 
H. 
Hall (Marshall, M.D.). Theory of the inverse ratio which subsists between the re¬ 
spiration and irritability in the animal kingdom, 321. 
-—■———-On hybernation, 335. 
Hudson (Mr. James). Hourly observations on the barometer, with experimental inves¬ 
tigations into the phenomena of its periodical oscillation, 575. 
Hybernation, on, 335. 
---— (true) on, 338. 
