IKDEX. 



553 



Belgium, Prussia, Russia, India, and 



Australia, abstract of the results of the 



comparison of, 311. 

 Statical stability of a ship, new method of 



calculating, 332 ; note on, 396. 

 Stewart (B.), note on the secular change 



of magnetic dip, as recorded at the Kew 



Observatory, 8. 

 , on the specific gravity of mercury, 



10. 



and Tait (P. Gr.) on the heating of a 



disk by rapid rotation m vacuo, 290. 



, a comparison between some of the 

 simultaneous records of the barographs 

 at Oxford and at Kew, 413. 



Stigmatics, plane, second memoir on, 192. 



Stokes (Gr. G-.) on the internal distribution 

 of matter which shall produce a given 

 potential at the surface of a gravitating 

 mass, 482. 



Stonyhurst magnetic observatory, 275. 



Strange (A.) on a transit-instrument and 

 a zenith sector, to be used on the Great 

 Trigonometrical Survey of India for the 

 determination, respectively, of longitude 

 and latitude, 385. 



Sulphite of soda, its utility in microspectro 

 researches, 447. 



Sun, notice of a zone of spots on the, 63. 



, luminosity of the, 68. 



, spectroscopic observations of, 256. 



, eclipses of, observations of tempera- 



tui'e during, 421. 



Sunlight, note on the relative chemical in- 

 tensity of, 20. 



Sunspots, observation of, at Dessau and 

 Kew, 276. 



Sylvester (J. J.) on the motion of a rigid 

 body moving freely about a fixed point, 

 139. 



TcBuia echinococcus, notes on the rearing 



of, in the dog, from hydatids, 224. 

 Tarn (E. W.) on the stability of domes, 



Part I., 182 ; Part II., 266. 

 Teeth, succession and development of, in 



the marsupialia, 464. 

 Temperature, on Appold's apparatus for 



regulating, 144. 

 , observations of, during two eclipses 



of the sun (in 1858 and 1867), 421. 

 Ternary quadratic forms, on the orders 



and genera of, 387. 

 Tetraphosphoric amides, on the, 509. 

 Thesaurus Siluricus, a brief account of 



the, 372. 



Tidal currents of the west coast of Scot- 

 land, on the, 42. 



Tide observations at Bristol, discussion of, 

 289. 



Tides of the arctic seas, on the (Part III.), 

 114. 



Torsion and flexure, experiments on, for 

 the determination of rigidities, 356. 



Townsend (Eev. E.) admitted, 209. 



Transit-instrument, description of, 385. 



Tyndall (J.), sixth memoir on radiation 

 and absorption, 5. 



Urine, on the colouring and extractive 

 matters of. Part I., 1 ; Part II., 222. 



, fhuman, on a crystalline fatty acid 



from, 258. 



Yarley (C. F.) on certain points in the 

 theory of the magneto-electric machines 

 of Wilde, Wheatstone, and Siemens, 

 403. 



Vice-Presidents appointed, 289. 

 Vision, binocular, a new fact relating to, 

 424. 



Von Baer (Carl Ernst), account of the 

 discovery of the body of a mammoth in 

 Arctic Siberia, 93. 



Walker (J., Lieut.-Col.), Letter on Capt. 

 Basevi's pendulum observations in In- 

 dia, 254. 



, preliminary notice of results of pen- 

 dulum experiments made in India, 318. 



Wanklyn (J. A.), rosaniline, on the rela- 

 tion of, to rosolic acid, 210. 



and Chapman (E. T.), ethylamine, 



on the preparation of, 218. 



Watts (H.) admitted, 189. 



Weather, influence of past and present on 

 future states of, 470. 



Wheatstone (C.) on the augmentation of 

 the power of a magnet by the reaction 

 thereon of currents induced by the 

 magnet itself, 369. 



Wilde (H.), experimental researches in 

 magnetism and electricity (Part I.), 

 107. 



Wilson (E.) on a remarkable alteration 

 of appearance and structure of the hu- 

 man hair, 406. 



Wood (J.), variations in human myology 

 observed during the winter session of 



1865- 66 at King's College, London, 

 229. 



, variations in human myology ob- 

 served during the winter session of 



1866- 67 at King's College, London, 

 518. 



Zenith sector, description of, 385. 



END OF THE FIFTEENTH VOLUME. 



