INDEX 
PAGE 
Achromatism, Defects of the Human 
Eye as regards 328 
Acrididm of Ncrth America, Synopsis 
of the 192 
Aerial Navigation 109 
„ "World, the 76 
African (S.) Hydrology 415 
Agaricus Ascophorus, Mr. Berkeley’s 
Observations on 312 
Air, Carbonic Acid in the 316 
Alcohol, Detection of, in Wood- 
spirit 317 
Algse, Bed Colouring Matter of the 311 
Alloys, Action of Electric Currents 
on 433 
Aluminum, Electro-chemical Be- 
sistance of 218 
,, New Property of 433 
America, Cretaceous Flora of 411 
American Geological Surveys 409 
,, Indians, a History of the 300 
,, (North) Oniscida 437 
,, Oil Districts, Extent, of 1C6 
,, S. Pacific Exploration, 
Botany of the 95 
,, Zoology and Geology 292, 436 
Amphioxus, some Peculiarities of... 219 
,, Vertebrate Animals 
from 334 
Amsterdam, Flora of. 311 
Amylic Alcohol, Detection of, in 
Spirits of Wine 317 
Anaesthesia, Discoverer of. 427 
Anatomical Preparations, Preserva- 
tion of 427 
Anatom} 7 , Comparative 111,219, 332,434 
Anderson School of Natural History 335 
Andrena Atriceps, Specimens of 
Stylops on 333 
Angular Aperture : its Uses 325 
Animal Kingdom, Prof. Huxley’s 
Classification of the 221 
,, Substances which produce a 
Cross under the Polariscope 99 
PAGE 
Animals, Measurement of Blood 
Corpuscles of 219 
„ New Mode of Preserving 
the Bodies of 436 
„ the Power of Changing 
Colour in 103 
Annular Eclipse of the Sun 310 
Ant-hill, White, Fungus found in... 422 
Ants, Harvesting 188 
Ant-supporting Plants 29 
Apples, Gases Evolved from 317 
Arabian Nights, Astronomy in the 418 
Arctic Expedition 208 
„ German 67 
,, Instructions for 
the 407 
„ its Scientific Aims 1 54 
,, Naturalists on the 335 
Arctic Exploration, Past and Coming 264 
,, Flora, Heer’s 311 
Arithmetic in Theory and Practice 304 
Arsenic, Marsh’s Tests for 96 
Arts, Manufactures, and Mines, 
Dictionary of 302 
Asthma, Cigars de Joy as a Pre- 
ventive of 208 
Astronomer Boyal’s Annual Beport 
for 1874 305 
Astronomical Observations in the 
United States 417 
,, Society, General Meet- 
ing of the 195 
,, Monthly No- 
tices of the 309 
Astronomy 88, 193, 305, 418 
„ in the Arabian Nights... 418 
Atmosphere, Befraction of Sound by 
the 432 
Atropine in Opium Poisoning, Value 
of 428 
Atteridge, A. H., on the Manufac- 
ture and Conveyance of Gun- 
powder 40 
Aurora’s Spectrum 329 
