524 



INDEX. 



Boyston-Pigott (G. W.), researches in cir- 

 cular solar spectra, applied to test re- 

 siduary aberration in microscopes and 

 telescopes, and the construction of a 

 compensating eyepiece, being a sequel 

 to the paper on a searcher lor aplanatic 

 images, 426. 



Eumford medal awarded to A. J. Ang- 

 strom, 31. 



Eussell (W. H. L.) on linear differential 

 equations: No. VI., 14; No. VII., 20. 



Sale (Lieut.), the action of light on the 

 electrical resistance of selenium, 283. 



Saline solutions, on supersaturated, 208. 



Sanderson (J. B.), note on the electrical 

 phenomena which accompany irrita- 

 tion of the leaf of Dioncea muscipula, 

 495. 



Schafer (E. A.) on the structure of striped 

 muscular fibre, 242. 



Schorlemmer (C.) and Grimshaw (H.) on 

 normal primary heptyl alcohol, 393. 



Seabroke (G. M.) and Lockyer (J. N.) on 

 a new method of viewing the chromo- 

 sphere, 105. 



Shanks (W.) on the extension of the nu- 

 merical value of rr, 318. 



Ship, meteorological statistics in determin- 

 ing the best course for a, 263. 



Ships, on the durability and preservation 

 of iron, 259. 



Solar prominences, note on the wide-slit 

 method of viewing the, 127. 



Sorby (H. C.) on comparative vegetable 

 chromatology, 442. 



Spectra of gases, on the effect of pressure 

 on the, 282. 



Spectroscope, on the quantitative analysis 

 of certain alloys by means of the, 

 507. 



Spectrum-analysis, researches in, in con- 

 nexion with the spectrum of the sun : 

 No. I., 83; No. II., 285; No. III., 

 508. 



Spiller (J.) on new sources of ethyl- and 

 methyl-aniline, 204. 



Spinal nerves, on the functions of the 

 ganglia which are formed in the pos- 

 terior roots of the, 426. 



Spottiswoode's contact problems, on, 

 425. 



Steam (C. H.) and Lee (G. H.) on the 

 effect of pressure on the character of the 

 spectra of gases, 282. 



Standard voltaic battery, on a, 422. 



Standards of length, results of the compa- 

 risons of, 407. 



Stenhouse (J.), contributions to the history 

 of the orcins : No. III., Amido-deriva- 

 tives of orcin, 122. 



Stewart (B.) and Tait (P. G.) on the heat- 



ing of a disk by rapid rotation in vacuo, 

 309. 



Stewart (B.) on a tendency observed in sun- 

 spots to change alternately from the one 

 solar hemisphere to the other, 399. 



Structure and development of the skull in 

 the pig, 402. 



Stuart (J.), investigation of the attraction 

 of a galvanic coil on a small magnetic 

 mass, 66. 



Sun-spots, observations on, 399. 



Synthesis of ammonia, on the direct, 281. 



Tait (P. G.) and Stewart (B.) on the heat- 

 ing of a disk by rapid rotation in vacuo, 

 309. 



Telescopes and microscopes, on the re- 

 siduary aberration in, 426. 



Temperature, on the, necessary to kill 

 Bacteria, Vibriones, and their germs, 

 224,325. 



Thaumops, 206. 



pelhicida, 207. 



Theorems, some new, on the motion of a 

 body about a fixed point, 233. 



Thorpe (T. E.) and Young (J.) on the 

 combined action of heat and pressure 

 upon the paraffins, 184. 



Todhunter (I.), note on an erroneous ex- 

 tension of Jacobi's theorem, 119. 



Toluidine, transformation of aniline into, 

 54. 



Tomlinson (C.) on supersaturated saline 



solutions, 208. 

 Tribe (A.) and Gladstone (J. H.) on an 



air-battery, 247. 



Vapour-density of potassium, on the, 203. 

 Vegetable chromatology, on comparative, 

 442. 



Vibriones, Bacteria, and their germs, on 

 the temperature necessary to kill, 224, 

 325. 



Vice-Presidents appointed, 47, 70. 

 Visible direction: being an elementary 



contribution to the study of monocular 



and binocular vision, 213. 

 Vision, on the accommodation of, and the 



anatomy of the ciliary body, 423. 

 Voltaic battery, on a standard, 422. 



Wells (J. C), observations on the tempe- 

 rature of the Arctic Sea in the neigh- 

 bourhood of Spitzbergen, 91. 



Wenham (F. H.), a new formula for a 

 microscope object-glass, 111. 



Wharton (J. L.), observations on the cur- 

 rents and undercurrents of the Darda- 

 nelles and Bosphorus, made in H.M. 

 Surveying-Ship 'Shearwater,' between 

 the months of June and October, 1872, 

 387. 



