INDEX TO VOL. VI. 



Acids from various vegetables, 4. 

 Adams (J. C.) on the secular variation of 



the moon's mean motion, 321. 

 Africa, exploring expedition to Centi'al, 



374. 



Air-engine, ^vorking temperature of, 77. 



Air in rapid motion, temperature of, ex- 

 periments on, 332. 



, temperature of, in the Alps, 7. 



mxder pressure, determination of 



specific heat of, 307. 



Airy (G. B.) on the relation of the di- 

 rection of the wind to the age of the 

 moon, 33. ♦ 



■ on the echpses of Agathocles, 



Thales, and Xerxes, 279. 



Allman (G. J.) on the anatomy and phy- 

 siologj' of CordylojjJiora, &c.,319. 



Alps, distribution of temperature in, 

 results of observation on, 6 ; snow-line 

 in, 7 ; correspondence of summits of to 

 high latitudes, 8. 



, distribution of vegetables in, 12. 



Ammonia,its influence on vegetation, 308. 



, oxidation of, in human body ; 



changes in the urine produced by, 22 ; 

 nitric acid produced by, 23. 



Anuiversarv Meetings : Dec. 1, 1851, 

 101 ; Nov. 30, 1852, 233 ; Nov. 30, 

 1853, 343. 



Annual Meetings for election of Fellows, 

 76, 203, 311. 



Antennae, anatomy of, in a small species of 

 crustacean, 296. 



Arago (F.), letter from, thanks for Rum- 

 ford Medal, 3. 



, obituary notice of, 359. 



Archipelago, Eastern, magnetic survev of, 

 15,252. 



Ascaris Mi/sta^\ reproduction of, 86 ; 

 changes in the ovuii of, 87. 



Atherton (Rev. R. H.) on the explana- 

 tion of the so-called terious circles, 

 33. 



Atmosphere, influence of moon on, at 



Singapore, 162. 

 , proportion of ammonia in ; of azote, 



308. 



Atmospheric waves, definition of ; more 

 than one system of ; direction and rate 

 of propagation of ; independent of di- 

 rection of wind, 75. 



Aurorse, connectionwith solar spots, table 

 of appearances of, 291. 



Autogenous processes of vertebrae, 9. 

 Azote, its influence on vegetation, 308. 



Barry (M.) on animal and vegetable 



fibre, as originally composed of twin 



spiral filaments, &c., 293. 

 on the penetration of spermatozoa 



into the interior of the ovum, &c., 



295. 



, researches in embryologv, &c., 



335. 



Bat's-wing, rythmical contractility of 

 veins of, 147 ; rate of contractions in 

 valves and arteries; structure of, 148. 



Baxter (H. F.), an experimental inquiry 

 into signs of current force during se- 

 cretion in living animals, 221, 230. 



, experimental inquiry into signs of 



current electricity in plants, 267. 



Beechey (Capt. F. ^V.), report of fm'ther 

 observations on the tidal streams of 

 the Enghsh Channel and German 

 Ocean, 68. 



Beer, acidity, sweetness, and strength of, 

 378. 



Blood-proper and chylo-aqueous fluid ; 

 two distinct kinds of fluid in inverte- 

 brate animals, circulatory movement 

 of the one, to and fi'o movement of 

 the other, 163 ; difl:erent proportions 

 of corpuscles in chylo-aqueous fluid, 

 164; single fluid series, 165. 



Blood-vessels, researches on distribution 

 of, in the lungs, 315 ; distinction be- 

 tween bronchial and pulmonary, 316. 



Bone, structure and development of, 203; 

 canals of ; lamination of, 204 ; ossified 

 cartilages and cells, &c., 205 ; ultimate 

 structure of tissue of; growth of, 206 ; 

 granular condition of, 207; absorption 

 of by cells, 208. 



Booth (Rev. J.), researches on the geo- 

 metric properties of elliptic integrals, 

 143. 



Brinton ( \Y.) on the dentate body of the 

 cerebellum, 225. 



Brodhm'st (B. E.), the human iris, its 

 structure and physiology, 84. 



on the motions of the iris, 154. 



Brongniart (A. T.), elected Foreign Mem- 

 ber, 229. 



Brooke (C.) on the automatic tempera- 

 ture-compensation of the force mag- 

 netometers, 85, 



