INDEX 
PAGE 
Abnormal Form of Ophrys, the ... 86 I 
Absorbed Light, Actmic Power of... 114 
Absorption of Carbonic Acid by the 
Eoots of Plants 87 
Absorptive Action of Soils . 91 
Acetic Acid, Electrolysis of 228 
,, Volumetric Determina- 
tion of 203 
Acetylene, Economic Source of 200 
Actinic Power of Absorbed Light... 114 
Actinometer, New 335 
Actinometry, Experiments in 115 
Action of Light on Chloride of 
Silver 109 
JEpyornis, Egg of 119 
Aerial Locomotion, Pamphlet on ... 415 
Aeronautical Society, Eeport of ... 414 
Agaricus, Development of 197 
. Air-pump, the Sprengel 230 
Air, Eespired, Organisms in 104 
Alcohol, Acetification of 427 
Aldehyd, Conversion of Wood-spirit 
into 93 
Alkalies, New Test for 90 
Alkaline Carbonates inWater, simple 
Test for 199 
Alloys, the Science of. 332 
Almond, Specific Identity of the . . . 424 
Alum in Wine 326 
,, Lamellar Polarisation of ... 232 
Amaurosis from Tobacco- smoking. . . 102 
Amber in Australia 220 
America, Central, Volcanic Eruption 
in 320 
American Chemistry 188 
„ Indians, the 189 
„ Zoologists 233 
Amiens Gravel, the 96 
Ammoniated Chloride of Zinc, New 428 
Ammonium, Sulphocyanide of, in 
Gas-Mains 94 
Anatomy of Edible Eats 119 
,, Helix and Limax 233 
„ the Lemuridae 344 
,, the Mesotherium 98 
,, Prof. Halford’s and Prof. 
Humphry’s 344 
Aneroid Barometer, Value of the ... 451 
Aniline Colours, the 411 
,, Marking-ink 316 
,, used for Bronzing 219 
„ Varnish, Black 427 
Animalcule Cage, Novel 108 
Animal Hospital at Bombay, the ... 121 
PAGE 
Animals between Birds andEeptiles 237 
Animals, Experiments on, with So- 
luble Silicates 211 
Ansted, Prof., on Hurricanes, Ty- 
phoons, and Tornados 10 
Ansted, Prof., on How to make a 
Geological Section 386 
Anthozoaria, Polymorphism of 342 
Antherozoids of Mosses, The 424 
Apes, Limbs of 122 
Are there Two Species of Horse?... 340 
Arrow-poisons, Indian and African 327 
Arsenic, Absorption of, by Charcoal 315 
Arterial Capillaries in Insects 455 
Artificial Gems 333 
„ Selection and Pangenesis 176 
Aspbaltum, Trinidad 108 
Aspirator, New 315, 452 
Asteroid, the 98th 311 
Asteroids, Further Discovery of ... 419 
Astronomical Movements of Plants 87 
Astronomy 81, 191, 308, 417 
,, Loomis’s Treatise on... 184 
„ New Science of 79 
„ Popular 407 
„ Eolation of, to Geology 95 
Atmosphere of the Underground 
Eailway 89 
Atomic Weight, Eolation of Mag- 
netism to..., 339 
Australian Parrot, rare 120 
Avine Fauna of Madagascar 455 
Azores, Volcanic Eruption in the... 95 
Bactbrba in the Kidneys, &c 324 
Bacteria, Development of 315 
Bacterium, Origin of 233 
Barometer, a Traveller’s 115 
„ Magellan’s 115 
Barometrograph, the 116 
Bastian (H. C.), on Free Nematoids 163“ 
Bath Solutions, Filtering 334 
Bats, Edible, Anatomy of...., 119 
Battery which Works for Years, a 232 
Bees, Production of the Sexes in ... 341 
Beetle-life, Sketches from 302 
Belgian Bone-Caves, The 94, 207 
Belladonna, Physiological Action of 439 
Berkeley, Mr., onMr. Darwin’sViews 456 
Bessemer Process, Chemistry of the 333 
„ Steel Spectrum 114 
Bible Animals 307, 416 
BickerstafFe’s ‘ ‘ Sketches from Beetle- 
life” 302 
Binoculars, Stereoscopic 109 
I I 2 
