558 
Sub-Wealden exploration, 127, 272, 
415,545 
Sulzbach, epidote of optical characters 
of the, 266 
Summary of quantity and value of 
minerals of the United Kingdom 
during 1872, 261 
Survey, Geological, 
Kingdom, 52 
Syngenite, description of, 266 
System, Saturnian, 1 
of the United 
ANTALUM and niobium, the 
composition of the natural com- 
pounds of, 266 
Tapers, coloured, 280 
«* Telegraphy, Handbook of” (review), 
255 
cpr ature, variations in molecular 
changes produced in iron, 264 
Tempering steel, new mode of, 122 
Tests of metals, 264 
Thanet sand on the northern outcrop 
of the London basin, 128 
“The Ocean” (review), 246 
‘““ Theory of Arches” (review), 531 
Thermometric and barometric obser- 
vations, method of recording, 
11g 
THOMPSON, JAMES, Prof., steam navi- 
gation, 541 
THoMsOoN, WM., Sir, deep-sea sound- 
ing, 541 
THORPE, Ab dae Quantitative Che- 
mical Analysis” (review), 107 
Tuurston, R. H., molecular changes 
produced in iron by variations of 
temperature, 264 
Tietze coal and nickel ore in Persia, 
406 
Tin trade and tin produétion, 539 
TopLtey, Mr., Geology and parish 
boundaries, 271 
Torbenite, 123 
Trains, intervals between, 413 
“« Transactions of the American Insti- 
tute of Mining Engineers” (re- 
view), 407 
“Treasury of Natural History” (re- 
view), 404 
“Treatise on Watch-Work” (re- 
view), 259 
Trimerellida, 415 
Tropical Zoology, modern researches 
in, 320 
Tube-boilers, note on, 267 
TyNpDALL, J., ‘‘ Lectures on Light” 
(review), 98 
NHEALTHINESS of rooms 
papered with Scheele’s green, 281 
INDEX. 
‘October, 
United Kingdom, Geological Survey 
of, 52 
** Unitéd States Commission on Fish 
and Fisheries’ (review), 405 
‘* Universe and the Coming Transits” 
(review), 528 
Uranic acetate (normal), 135 
Useful displacement as limited by 
weight of structure and of pro- 
pulsive power, 412 
Utilising blast-furnace slag, 264 
bY ape t vadae n= A., metallurgy 
of bismuth, 408 
Value and quantity of minerals, sum- 
mary of, 261 
Valves suitable for working hydraulic 
machinery, 542 
Veszelite, mineral, 540 
Victoria coal-fields, 538 
— — report on, 262 
— gold-fields of, 539 
Volcanic eruption and earthquake at 
Nissiros, 127 
Voltameters, result of experiments 
with, 132 
ieee drop, new form of, for 
blast-furnaces, 543 
Warp. J. C., origin of lake basins, 
271 
“ Watch-work ”’ (review), 259 
Water-basin of Lough Derg, 127 
Water supply, improvement of Paris, 
124 
— — of Deptford, 267 
— — of Dublin, 269 
Wax, Japan, 248 
Wess, W., dispute about fine lines 
on Nobert’s test-plate, 131 
Wessky, M., Grochauite,new species 
of clinochlore, 410 
Weight of structure and of propulsive 
power, useful displacement as 
limited by, 412 
West, Cuas., ‘* The Harveian Oration 
for 1874’ (review), 522 
Whistle for locomotives wrought by 
electro-magnet, 419 
Wuiraker, W., discovery of Thanet 
sand on the northern outcrop of 
the London basin, 128 
— — geological block model of Lon- 
don, 127 
— —lists of papers on Geology, 
Mineralogy, and Palzontology, 
271 
Se counterfeit, 280 
— process for testing the colour of, 280 
