940 



INDEX. 



of the Committee for co-operating with 

 the Meteorological Society of the 

 Mauritius in the publication of, 40. 



Tangye gas hammer, the, by D. Clerk, 

 883. 



*Tar, blast furnace coal, from Gartsherrie 

 works, the constituents of the light 

 oils of, Watson Smith on, 640. 



*Tars,some coke oven, of German origin. 

 Prof. Lunge on the composition of, 

 640. 



Tattooing, by Miss A. W. Buckland, 904. 



Taylor (H.) on standards for use in elec- 

 trical measurements, 206. 



Taylor (Canon I.), the jDrimitive seat of 

 1he Aryans, 895 ; *observations on Mr. 

 Petrie's ethnological casts from Egypt, 

 907. 



Teall (J. J. H.) on the volcanic phe- 

 nomena of Vesuvius and its neigh- 

 bourhood, 226 ; on the microscopical 

 examination of the older rocks of 

 Anglesey, 230 ; the origin of banded 

 gneisses, 707. 



Technical education, the bearing of home 

 education on, by Miss C. M. Mason, 

 846. 



, the form it should take, by E. J. 



Watherston, 844. 



Telegraphy, fast speed, by W. H. Preece, 

 874. 



Telemeter system, the, by F. R. Upton, 

 878. 



Temple (Sir R.) on the teaching of 

 science in elementary schools, 163. 



Terrestrial magnetism, the general biblio- 

 graphy of meteorology and, compiled 

 by the Signal Office, Washington, C. 

 Abbe ou, .593. 



Tliasos, the ancient marble commerce of, 

 report on, by Mr. Bent, 201. 



Thermal windrose at the Ben Nevis Ob- 

 servatory, A. Rankin on the, 595. 



Tliinolite and jarrowite. Prof. G. A. 

 Lebour on, 700. 



Thiselton-Dyer (Mr.) on our present 

 knowledge of the flora of China, 94 ; 

 on the steps taken for establishing a 

 botanical station at Peradeniya, 96. 



Thompson (C.) and Dr. C. R. A. Wright, 

 notes on some peculiar voltaic com- 

 binations, 657. 



Thompson (Prof. D'A.) on the desirability 

 of combined action for the translation 

 of foreign memoirs, 41 ; * the larynx 

 and stomach of cetacean embryos, 

 740 ; *the blood-corpuscles of the 

 Cyclostomata, ib. 



Thompson (I. C.) on some copepoda new 

 to Britain found in Liverpool Bay, 

 734. 



Thompson (Prof. S. P.) on electrolysis in 

 its physical and chemical bearings, 336 ; 



on the ratio of the two elasticities 

 of air, 581 ; twin-prisms for polari- 

 meters, 585 ; *on the electro-deposition 

 of alloys, 590 ; *on the industrial 

 electro-deposition of platinum, ih. 



Thomson (Dr. A.) and Prof. CarneUey, 

 the solubility of isomeric organic 

 compounds, 647. 



Thomson (Prof. J.) on the endurance of 

 metals under repeated and varying 

 stresses, and the proper working stresses 

 on railway bridges, &c., 424. 



Thomson (Prof. J. J.) on standards for 

 use in electrical measurements, 206 ; 

 on electrolysis in its physical and 

 chemical bearings, 336. 



Thomson (J. M.) on electrolysis in its 

 physical and chemical bearings, 336. 



Thomson (Prof. Sir W.) on the work of 

 the Differential Gravity Meter Com- 

 mittee, 41 ; on the depth of perma- 

 nently frozen soil in the Polar regions, 

 152 ; on the combination of the Ord- 

 nance and Admiralty surveys, and the 

 production of a bathy-hypsographical 

 map of the British Islands, 160 ; on 

 standards for use in electrical measure- 

 ments, 206 ; on the best means of 

 comparing and reducing magnetic ob- 

 servations, 320 ; on electrolysis in its 

 physical and chemical bearings, 336 ; 

 on the vortex theory of the luminif erous 

 ffither, 486 ; *on the turbulent motion 

 of water between two planes, 581 ; new 

 electric balances, 582 ; on the applica- 

 tion of the centi-ampere or the deci- 

 ampere balance for the measurement 

 of the E.M.F. of a single cell, 610. 



Thomson (W.) on the antiseptic proper- 

 ties of some of the fluorine compounds, 

 667. 



Thunderstorms, on the different kinds of, 

 and on a scheme for their systematic 

 observation, by Hon. R. Abercromby, 

 597. 



Tidal observations in Canada, third re- 

 port of the Committee for promoting, 

 31. 



Tiddeman (R. H.) on the erratic blocks 

 of England, Wales, and Ireland, 236. 



Tilden (Prof.) on the desirability of 

 combined action for the translation of 

 foreign memoirs, 41 ; on the influence 

 of silicon on the properties of steel, 

 43 ; on the investigation of certain 

 physical constants of solution, espe- 

 cially the expansion of saline solutions, 

 48 ; on the nature of solution, 55 ; on 

 the bibliography of solution, 57; on 

 isomeric naphthalene derivatives, 231 ; 

 on electrolysis in its physical and 

 chemical bearings, 336. 



Till or lower boulder-clay, the, in several 

 of the glaciated countries of Europe, a 



