528 POPULAR SCIENCE REVIEW. 
Hard Structures, Action of 511 
Harmonies of Nature, the. By 
Dr. Hartwig 476 
Heart, Contractions of the 505 
Heat-rays, Concentration of, in 
Solar Observations , 520 
Hemiptera, British. By Douglas 
and Scott 82 
Henslow, Rev. Geo. on Climbing 
Plants 55 
„ Hybridiza- 
tion among Plants 304 
Hicks, J. B., on the Volvox 
Globator 137 
Hofmann (A. W.) on Modern 
Chemistry 86 
Homes Without Hands. By the 
Rev. J. G. Wood 85 
Houghton, Rev. W. on Hydrse . . 267 
,, Insects Injurious 
to Turnips 1 
House Spiders, Our. By J. Black- 
wall 161 
How to Work with the Telescope. 
By R. A. Proctor 279, 462 
Hoyle’s Mouth Cavern, Fossils of 
the 103 
Hull, E., on Modern Views of 
Denudation 453 
Hull, J., on Raised Beaches .... 169 
Human Crania, Two Extreme 
Forms of 521 
Humboldt, Alexander Von. By 
F. A. Schwarzenbutg 220 
Hybridization among Plants. By 
Rev. G. Henslow 304 
Hydrse. Bythe Rev. W. Houghton 267 
Hydraulic Lift Graving Dock .... 241 
Hydro-carbons, Volatile 100 
Hydro-electric Piles 516 
Hydrogen Flame, Physical Pheno- 
mena of 128 
Hydrostatic Cylinders. Rupture of 115 
Hydoryl 103 
Hydrozoa, Microscopic Anatomy 
of the 134 
Ianthina’s Float, Formation of 390 
Ice 41 
„ Formation of 387 
,, New Method of Producing . . 388 
Illumination, New Method of. . . . 108 
Illuminator for Opaque Objects . . 115 
Indium, New Sources of 376 
Infusoria, Development of the . . 263 
Insects Injurious to Turnips .... 1 
„ Metamorphoses of 392 
„ Muscular Force of 133 
Insulating Material, New 129 
International Botanical Congress 97 
Investing Tunic in the Gregarina 263 
Iodide of Lead, Action of Light on 514 
,, of Potassium, Decomposi- 
tion of 234 
,, of Silver, is it Sensitive to 
Light? 257 
Iodine in the System Ill 
Irish Vegetation 359 
Iron Allotropic Conditions of ... . 121 
Iron Founding 509 
„ Ore, New 120 
,, Perchloride of 110 
,, to Protect from Oxidization 252 
,, Ship-building. By W. Fair- 
bairn .' 86 
Iron Ships, Deviation of the Com- 
pass in 388 
Ironstone, Peculiar 498 
Jasper, New Source of 253 
J ussiaea Repens * . * i . . . . . 494 
Ladd’s Modification of Marcus’s 
Thermo-electric Battery 261 
Lake-basins, Action of Ice in 
Forming 105 
Lake-Dwellings in Switzerland. 
By Dr. Keller i . . . 473 
Lake Superior, Minerals of 253 
Lank ester, E. R., on the Move- 
ments of Diatomaceae 395 
Lardner’s Natural Philosophy. . . . 353 
Latent Image, the 257 
Lauraceae, Floral Envelopes of the 359 
Lead from Silver, Separation of.. 251 
Leaf-holder, New 511 
Leaves, Function of . . 97 
Lemming, Habits of the 520 
Lemoran, L., on the Exhaustion 
of Coal 290 
Lenses, New 125 
Liebig, Baron, on Coffee 12 
Light, Action of, on a Bichromate 
associated with Gelatine 254 
,, Influence of, on Plants .... 228 
Light-emitting Apparatus of the 
Glow-worm. By H. Tripp .... 314 
Lightning, Natural History of. 
By Dr. Testier 484 
Lime for Organic Analysis 100 
Lindley’s Treasury of Botany .... 221 
Linnaeus, Works of 263 
Lithographs, Old, How to Repro- 
duce 259 
Liquid Manure 223 
Local Florae 229 
Lode in a Cornish Mine 508 
Lophopus Crystallinus, Notes on 438 
Lower Lias of Somerset, the .... 107 
Lupinus Polyphyllus, Fecundation 
of ......... 230 
