INDEX I. 
gold-assays, and of stating the results 
thereof, 127. 
Robertson (D.) on dredging on the coasts 
i : Durham and North Yorkshire, 
Rogers (Prof. T.) on the economic effects 
of combinations of labourers and capi- 
talists, 266. 
Sabine (R.) on Mr, Siemens’s pyrometer, 
242, 
Salmond (T. R.) on the Belfast Harbour, 
118 
Sanford (W. A.) on the exploration of 
Kent’s Cavern, 1. 
— fifth report on earthquakes in, 
hs 
Sellon (J. 8.) on the method of making 
gold-assays, and of stating the results 
thereof, 127. 
Settle Caves (Victoria Cave), second re- 
port on the exploration of the, 133. 
Sewage, sixth report on the treatment 
and utilization of, 200. 
Ships, instruments for measuring the 
speed of, report on, 255. 
Shoolbred (J. N.) on instruments for 
measuring the speed of ships, 255. 
Siemens (Dr. C. W.) on Mr. Siemens’s 
pyrometer, 242; on the selection and 
nomenclature of dynamical and elec- 
trical units, 255; on instruments for 
measuring the speed of ships, 255; on 
the best means of providing for a uni- 
formity of weights and measures, 
with reference to the interests of 
science, 359. 
3 (Mr.) pyrometer, report of the 
committee appointed to test, 242. 
Smith (Prof. H. J. 8.) on the teaching 
of physics in schools, 71. 
(W.) on instruments for measuring 
the speed of ships, 255. 
Smyth (J., jun.) on the industrial uses of 
the Upper Bann river, 139. 
Spottiswoode (W.) on preparing and 
printing tables of wave-numbers, 241. 
Stewart (Prof. Balfour) on the teaching 
of physics in schools, 71; on the se- 
lection and nomenclature of dynami- 
cal and electrical units, 255. 
Stoney (G. J.) on preparing and printing 
tables of wave-numbers, 241; on the 
selection and nomenclature of dyna- 
mical and electrical units, 255. 
Strachey (Major-Gen.) on the best 
means of providing for a uniformity of 
weights and measures, with reference 
to the interests of science, 559. 
Sub- Wealden exploration, second report 
237 
on the, 21; geological report thereon, 
by W. Topley, 22; list of fossils ob- 
served, 25. 
Sun-spot periodicity, C. Meldrum on 
cyclone and rainfall periodicities in 
connexion with the, 218. 
Symons (G. J.) on the rainfall of the 
British Isles for the years 1873-74, 
75. 
Systematic botany, G. Bentham on the 
ate progress and present state of, 
9 
ale 
Teaching of physics in schools, report on 
the, 71. 
Thermal conductivities of certain rocks, 
report on experiments to determine 
the, showing especially the geological 
aspects of the investigation, 128; de- 
scription and results of the experi- 
ments, by Prof. A. S. Herschel, 128 ; 
geological aspects of the results of the 
experiments, by G. A. Lebour, 131. 
Thomson (J.) on the structure and classi- 
fication of the Labyrinthodonts, 149 ; 
on earthquakes in Scotland, 241. 
(Prof. Sir W.) on earthquakes 
in Scotland, 241; on Mr. Siemens’s 
pyrometer, 242; on the selection and 
nomenclature of dynamical and elec- 
trical units, 255; on instruments for 
measuring the speed of ships, 255, 
Thorpe (Prof.) on isomeric cresols and 
their derivatives, 73. 
Tiddeman (R. H.) on the exploration 
of the Settle Caves, 153. 
Tomlinson (C.) on the rainfall of the 
British Isles for the years 1873-74, 
75 
Topley (W.) on the Sub-Wealden ex- 
ploration, 21; geological report on 
the Sub- Wealden exploration, 22. 
Treatment and utilization of sewage, 
sixth report on the, 200. 
Tristram (Rev. Canon) on the possibility 
of establishing a ‘close time” for the 
protection of indigenous animals, 264. 
Tylor (E. B.) on anthropological notes 
and queries for the use of travellers, 
214, 
Uniformity of weights and measures, 
with reference to the interests of 
science, report on the best means of 
providing for a, 359. 
Units, dynamical and electrical, second 
report on the selection and nomen- 
clature of, 255. 
Upper Bann river, J. Smyth, jun., on 
the industrial uses of the, 159, 
