1874.] 
Geology of West Coast of Africa, 537 
GenTH, F. A., study of corundum, 
265 
GiLtmorE, C. A., ‘‘ Béton Aggloméré, 
or Coignet-Béton, and the Mate- 
tials of which it is Made” (re- 
view), II2 
— — ‘' Practical Treatise on Limes, 
Hydraulic Cements, and Mor- 
tars’ (review), 112 
Glacial action in Tropical India, 127 
— period, theories to account for the 
climate of, 421 
Glaciation, polar, 414 
Glycerin to prevent incrustations in 
steam boilers, 419 
Gopparp, T. M., better communica- 
tion in pit-signalling by means of 
electricity, 262 
— — method of preventing tampering 
with the Davy lamp, 262 
Gold-fields of Victoria, 539 
GoopvEVE, T. M., ‘‘ Principles of Me- 
chanics”’ (review), 534 
Gosss, P. H., ‘‘ Evenings at the Mi- 
croscope ” (review), 254 
Great Basses lighthouse, 270 
Grochauite, new species of clino- 
chlore, 410 
Grove, Sir W. R., 
relation of Physical 
(review), 524 
Guns, 411 
GuTHuRIE, F., galvanic current entering 
and leaving aconducting medium, 
279 
AAS and ROHRIG, iron ores in 
Bidasoa, 120 
Habits of the “ plantain eaters,’’ 132 
Hai_es, H. F., sand blast, 273 
“*Half-Hours with the Microscope” 
(review), 253 
‘* Handbook of Natural Philosophy ” 
(review), 531 
‘* Handbook of Telegraphy” (review), 
255 
Halitherium, new species of, 128 
“ Harveian Oration for 1874”’ (review), 
22 
‘‘Hay-Fever, Causes and Nature” 
(review), 118 
Haywoop, street pavements, 268 
Heat, 274, 418 
— effects of, 134 
Helioscope, new, 546 
HERSCHEL and G. A. LEsBouR, ex- 
periments on the conduéting 
power for heat of certain rocks, 
127 
“The Cor- 
Forces ”’ 
INDEX. 
553 
Highlands, ancient volcanoes of, 271 
‘History of Music” (review), 516 
History of Rhine Valley, 415 
Hot.tey, A. L., tests of metals, 264 
Horbachite, description of, 123 
HuGuHEs, T., iron deposits of Chandra, 
in the Central Provinces, 263 
Hunt, R., our tin trade and tin pro- 
duétion, 539 
‘““ Hydraulic Cements, Mortars, and 
Limes, Practical Treatise on” 
(review), 112 
Pets and Iowa tornado, 339 
Improved forms of gas generator, 
139 
Improvement in photo-lithography, 
380 
— of the water supply of Paris, 124 
“Industry and Science, Annual Re- 
cord of” (review), 111, 398 
International exhibitions, annual, 332 
Intervals between trains, 413 
** Introduction to Organic Chemistry ” 
(review), 250 
Investigation of determinants, 212 
— of the fluorescent and absorption 
spectra of the uranium salts, 133 
Iowa and Illinois tornado, 339 
Iradescantia virginica, 567 
Iron-deposits of Chandra, in 
Central Provinces, 263 
Iron, CramMpTon’s revolving furnace 
for puddling, 539 
— mines of Antrim, 537 
— molecular changes produced in by 
variations of temperature, 264 
— ore, deposits of at Mount Bischoff, 
406 
— ores in Bidasoa, 170 
— remarks on, 408 
the 
EANS, J. S., coal-cutting by ma- 
chinery, 262 
JENKIN, F., “ Eleatricity and Mag- 
netism”’ (review), 107 
Jenks, Col., discovery of corundum, 
264. 
Joun, W., strength of iron ships, 412 
JORDAN, W. L., ‘‘ The Ocean” (re- 
view), 246 
Jupp, J. W., ancient volcanoes of the 
Highlands, 271 
Kee: G. H., peat bogs, 294 
— water basin of Lough Derg, 127 
Kina and Davipson, Trimerellide, 
415 
