548 
Gossans, 259 
Grain, &c., preserving, 278 
GriFFiTH, J. W., ‘‘ Micrographic Dic- 
tionary’ (review), 91 
Guarinite, mineral, 390 
Guns, experiments in, 102 
— and armour, 522 
— improvements in, 391 
— progress in manufacture of, 263 
— the seven-inch, 391 
AYWARD, J. W., and J. Drys- 
DALE “ Health and Comfort in 
House Building” (review), 503 
Health Ad, Public, 454 
Heat, progress in, 123, 271, 401, 530 
— dynamic effects of, on liquids, 4or 
‘‘ Heat, Theory of,’ by J. CLERK 
MAXWELL (review), 379 
Heavens, construction of the, 308 
HeEnwoop, W. J., ‘“‘ Address to Royal 
Institution of Cornwall” (review), 
7 
Hiacs, R. W., music of speech, 281 
Hisingerite, 522 
Hop plant, analysis of, 411 
Hopkinson, J., rupture of iron, 109 
‘‘ House Building, Health and Com- 
fort in,” by J. DRyspaLE and J. 
W. Haywarb (review), 503 
Huaains, W., “ Schellen’s Spectrum 
Analysis ” (review), 247 
Hydraulic cement, 277 
Hydrofluoric acid, 540 
‘‘ Hypotheses,” by F. J. Frnots (re- 
view), 505 
** Hypothesis of Mr. Darwin, Ex- 
position of Fallacies in the,” by 
C. R. BREE (review), 501 
(egceS from Arendal, 102 
Illumination of beacons and buoys, 21 
Illuminator for highest microscopic 
powers, 400 
‘* Index of Spectra,” by W. M. Watts 
(review), 383 
Indigotine, solvents for, 279 
Induction, electro-magnetic, 126 
— of electric currents, 273 
Inks, improvements in, 408 
‘Insects at Home,” by J. G. Woop 
(review), 82 
Institution of Civil Engineers, 266, 394 
— of Mechanical Engineers, 267, 395, 
526 
International Exhibition, progress in 
science at the, 413 
Iodine, phenomena of volatilisation, 
411 
Jron, analysis of native, 542 
INDEX. 
(O¢tober, 
Iron-charcoal, 520 
— discovery of native, 1o1 
— electro, deposited, 404 
— meteoric, 262 
— — figures on surface of, 279 
— refining, HENDERSON’S process, 388 
— rupture of, 109 
— stone mines, 98 
— and Steel Institute, 527 
— wrought, pure, 519 
Islemannite, new mineral, ror 
ELLETT, J. H., ‘“* Treatise on the 
Theory of Friction” (review), 378 
Jewish glass, analysis of, 113 
“¢ Jew’s tin,” 389 
Jorpan, W. L., ‘Oceanic Explora- 
tions” (review), 353 
Julianite, mineral, 261 
KANGAROO embryo of, 133 
Kreatine as source of nitrogen for 
plants, 114 
Kryokonite, 521 
EATHER waste, utilisation of, 
109 
Leclanché cell, 402 
Lemuride, zoological position of the, 
132 
Ley, W.C., “Law of Winds ” (re- 
view), 367 
‘Life of Richard Trevithick,” by F. 
TREVITHICK (review), 507 
‘Life Theories,’ by L. S. BEALE 
(review), 93 
Light, progress in, 116, 268, 395, 527 
Lighthouses, electric light in, 274 
Lightning conductors, 535 
Lime, phosphate of, 278 
Lithofraéteur, storage of, 519 
Litmus paper, sensitiveness of, 279 
Luioyp, W. A., ‘‘ Handbook to the 
Marine Aquarium of the Crystal 
Palace” (review), 373 
N | AN as the interpreter of nature, 
509 
‘“Man in the Past, Present, and 
Future,” by D. L. Bucuan (re- 
view), 374 
Manganophyll, 521 
‘‘ Materia Medica, Pereira’s”’ (review), 
372 
Magnetic iron sand, 412 
— properties of copper slags, 389 
Magnetism, cause of terrestrial, 276 
‘* Magnetism and Deviation of the 
Compass,” by J. MERRIFIELD 
(review), 501 
