547 



INDEX TO VOL. XXXIV. 



Acids : — succinic, 157 ; lizaric, 236 ; 

 oxylizaric, 237; anhydrous nitric, 

 314; phosphoric, 321; margaiic, 

 352; gyrophoric,464; chloroniceic, 

 473; nitranisic, 478. 



Aerial vibrations, on the mathematical 

 theory of, 88, 225. 



Airy (Prof.) on a difficulty in the 

 problem of sound, 401 ; on the 

 large reflecting telescopes of the 

 Earl of Rosse and Mr. Lassell, 

 532. 



Akxander (J. H.) on a new empirical 

 formula for ascertaining the ten- 

 sion of vapour of water at any tem- 

 perature, 1, 98. 



Algebra, on a new imaginary in, 37 ; 

 on a system of triple, 119 ; on the 

 symbols of, 406 ; on a new system 

 of imaginaries in, 425, 



Alkalies, organic, on a series of new, 

 316. 



Allan (M.) on tke urates, 154. 



AUotropism, on the existence and 

 effects of, in the constituent ele- 

 ments of living beings, 241. 



Alps, on the geological structure of 

 the, 207 ; on the distribution of the 

 superficial detritus of the, 523. 



Alum, on octahedral and cubic, 476. 



Ammonia, on a series of organic alka- 

 lies homologous with, 317- 



Animalcule, description of a new 

 genus of, 529. 



Anisidine, on the production and com- 

 position of, 477. 



Anisol and its derivatives, observa- 

 tions on, 476. 



Arsenic, on the prepai-ation of iodide 

 of, 152. 



Aurora borealis of Nov. 17, 1848, 

 observations of the, 226, 305. 



Aurorse boreales, remarks on the cause 

 of, 286. 



Bache (A> D.) on a new method of 

 observing transits, 460. 



Barlow (W. H.) on the cause of the 

 diurnal variations of the magnetic 

 needle, 344. 



2 



Baxendell (Mr.) on the variability of 



X Tauri, 217. 

 Bensch (M.) on the urates, 154. 

 Bertin (A.) on circular magnetic po- 

 larization, 481. 

 Bishop's (Mr.) ecliptic charts, notice 



of, 149. 

 Bismuth, on the crystalline polarity 



of, 75. 

 Blood, human, on the presence of 

 copper in, 155, 



Bodies, on the multiple sounds of, 

 415. 



Books, new: — Quetelet's Letters to 

 the Grand Duke of Saxe Coburg 

 and Gotha, on the Theory of Pro- 

 babilities, as applied to the Moral 

 and Political Sciences, 297 ; Patter- 

 son's First Steps to Zoology, 298 ; 

 Taylor's Statistics of Coal, 380; Sir 

 J. F. W. Herschel's Outlines of 

 Astronomy, 452. 



Booth (Jas.) on the application of the 

 theory of elliptic functions to the 

 rotation of a rigid body round a 

 fixed point, 312. 



Boracic acid, on some combinations 

 of, with oxide of lead, 375. 



Brandes (M. D.) on the ferrocyanides 

 of strychnia and brucia, 238; on 

 compounds of hydrochlorate of 

 strychnia and cyanide of mercury, 

 479. 



Brinton (W.) on the physiology of 

 the alimentary canal, 299. 



Bromine, impurity of commercial, 

 399. 



Brom-orcine, observations on, 465. 



Bronwin (Rev. B.) on the determina- 

 tion of the sines and cosines of 

 multiples of a variable angle, 260, 

 374; on the integration of linear 

 differential equations, 530. 



Brown (J.) on the products of the 

 soda manufacture, 15, 



Brucia, on the ferrocyanide of, 238, 



Cahours (M, A.) on anisol and its de- 

 rivatives, 476, 



Calculus of observations, on the, 60, 

 N2 



