INDEX 
PAGE 
Acetate of Soda and Nitrate of 
Potass, Explosion caused by Mix- 
ture of 92 
Ackland’s “ Story of Creation ” ... 199 
Adams (A.L.) on the Mental Powers 
of Birds 276 
Adulteration in London 208 
African Diamond-dust 322 
Air, Analysis of, in Public Schools 
in America 321 
„ Examination of, by means of 
Cold 309 
,, Eelation of, to the Clothes we 
wear 405 
Alcoholism Detected by Increase of 
Temperature 439 
Algse, Presh- water, of North 
America 426 
Alkalimetrical Assays, Change of 
Colour of Litmus in 208 
Allyls Compounds, Chemistry of 
the 309 
America, Appeal to 300 
American Dredging Expeditions ... 221 
,, Lichens 89 
„ Eecord of Science 401 
,, Sterling, what is it? 101 
Ammonia, Direct Synthesis of 427 
Amphipod, New 447 
Anatomy and Physiology, Tablets 
of 298 
„ Elementary 189 
,, of the Negro 223 
Anderson’s “ Strength of Materials 
and Structures ’* 82 
Aniline, Action of Sodium on 209 
Animal, Change of Habits in an ... 334 
„ Charcoal strongly Dis- 
colouring 209 
„ Kingdom, Table of Classi- 
fication of the 82 
„ Mechanics 288 
Animals Dredged in Lake Ontario 335 
„ of the Mammoth Cave ... 108 
Annuaire de Therapeutique 298 
Annulosa, Nervous System in the 110 
Anthropological Society 215 
PAGE 
Ants, Habits of 336 
„ Harvesting 193 
Anvil Cloud 359 
Aquarium, Dr. Dohrn’s Ill 
Arctic Sea, Temperature of the ... 326 
Artificial Fibrin as a Dietetic Sub- 
stance 320 
Astronomical Almanack for 1873 ... 199 
,, Subjects, Free Trans- 
mission of Messages on, by Trans- 
atlantic Cable 303 
Astronomy 84, 200, 299, 419 
Atmosphere, the 286 
Atmospheric Coal-winding Ma- 
chine 213 
Atomic Lenses, how to make 444 
Atteridge (A. H.) on Torpedoes ... 169 
Aurora Borealis, Spectrum of the 
106, 327 
Aventurine-Orthoclase, Analysis of 
an 322 
Bacteria, the Mode in which they 
Multiply 443 
Balsam Fir, Pith of the 427 
Barber (S.), on the Outline of 
Cloud Forms 359 
Barnacles : their Facts and their 
Fictions 384 
Battle of Life among Plants 35 
Belgian Coal in Britain.. 102 
Bengal, Compositse of. 90 
Bennett (A. W.) on the Fertilisa- 
tion of Plants 337 
Biela’s Comet 84, 204 
Bile, the Secretion of 439 
Biluchistan, Greology of... 95 
Bipalium; is it allied to the Leech ? 224 
Bird, Fossil 97 
Birds, Fossil, New Oroup of 210 
,, Mental Powers of 276 
„ Travelling 82 
Blackwall’s “Eesearches inZoology” 410 
Blake’s Catechism of Zoology 199 
Blood Corpuscles 99 
Blue Colour of Sky, its Cause 32'^ 
