560 



INDEX. 



Silurian rocks and fossils iu the South 

 of Scotland, on, 82. 



Sorby (H. C.) on slaty cleavage, 20 ; 

 on the physical geography of the 

 tertiary estuary of the Isle of Wight, 

 163. 



Spiller (J.), analysis of a Babylonian 

 cylinder and amulet, 107 ; on the 

 methods of preserving the sensi- 

 tiveness of collodion plates, 334. 



Springs on the Tm'ko- Persian fron- 

 tier, chemical examination of, 257. 



Stadeler (M.) on the action of the 

 copper salts of the fatty acids on 

 the organism, -157. 



Stars, new method of observing the 

 spectra of, 448. 



Steatite of Snarum, 40(i. 



Stolzel (M.) on the action of chemi- 

 cal reagents on green and blue ul- 

 tramarine, 454. 



Stromeyer (M ) on a method of de- 

 tecting cobalt, 3/6. 



Sulphomethylates, on the action of 

 water upon the, 68. 



Sulphur, on the density of, 145 ; on 

 the estimation of, in iron, \()9. 



Sulphuric acid, on the purification of, 

 from arsenic, 204. 



Swan (W.) on a new method of ob- 

 sei-ving the spectra of stars, 448. 



Sylvester (Prof.) on the theory of 

 projectiles, 450; on the existence 

 of conies with a curve of the thu-d 

 degree, 463. 



Tartanihde, 202. 



Tate (T.) on a new double-acting air- 

 pump, 297, 360. 



Tayler (J. W.) on cryohte, 551. 



Teiluramyle, 454 ; tellm-butyle, ib. 



Ternitropyroxyline, 460. 



Tertiary deposits of the Sussex coast, 

 on the newer, 79. 



estuary ot the Isle of Wight, on 



the physical geography of the, 163. 



Tetranitropyroxyline, 460. 



Thermo-electric currents, researches 

 on, 281, 379, 433. 



Thomson (J.) on the friction of discs 

 revolving in water, 47'4. 



Thomson (Prof.) on the reciprocal ac- 

 tion of diamagnetic particles, 66 j 



on the theory of the electric tele- 

 graph, 146 ; on the dynamical 

 theory of heat, 214, 281, 379, 433; 

 on the discovery of the true form 

 of Carnot's function, 447. 



Tides of the coasts of Ireland, solar 

 and lunar diurnal, 47, 1 1 1, 262,428. 



Tyndall (J.) on the relation of dia- 

 magnetic polarity to magnecrystallic 

 action, 125; on a peculiar case of 

 colom'-blindness, 329. 



Ultramarine, on the action of chemi- 

 cal reagents on green and blue, 454 ; 

 on the constitution of, 528. 



Urine, diabetic, on the volatile acid 

 of, 457. 



Ville (G.) on the estimation of nitro- 

 gen, 458 ; on an apparatus for ob- 

 taining a regular sujiply of hydro- 

 gen or sulphuretted hydrogen, 460. 



Volcanic craters, on the mode of pro- 

 duction of, 477. 



Vblknerite, 405. 



Volumetric determination, on, 375. 



Water, on the action of, upon certain 

 sulphomethylates, 68. 



Wedgwood's (H.) Geometry of the 

 Three First Books of Euclid, re- 

 viewed, 300. 



Whewell (Rev. W.) on Plato's survey 

 of the sciences, 308 ; on Plato's no- 

 tion of dialectic, 398. 



Wicke (M.), analysis of some infuso- 

 rial earth, 199. 



Wilhamson (B.) on the solution of 

 certain differential equations, 364. 



Wilson (J. S.) on the geology of Syd- 

 ney and of Brisbane, Australia, 396. 



Witt (H. M ), chemical examination 

 of certain lakes and springs on the 

 Turko- Persian frontiei", 257. 



Wittstein (M.) on the behaviour of 

 caustic lime exposed to the air, 458. 



Wbhler (Prof.), analysis of meteorites, 

 141 ; on tellurium and selenium 

 compounds, 45.3. 



Wright (Dr. T.) on the sands of the 

 inferior oolite, 396. 



Zinc, molecular ]jroperties of, 200. 



Zinin (M.) on some reactions of the 

 iotlide of propylenyle, 377- 



END OF THE ELEVENTH VOLUME. 



PRTNTEO BY TAYLOR AND FRANCIS, 

 RED I.ION COURT, FLEET STREET. 



