The Geographical Distribution of Animals, Volume 2 / With a study of the relations of living and extinct faunas as elucidating the past changes of the Earth's surface

by Alfred Russel Wallace

for each class of animals, not advisable, i. 58

zoological, proposed since 1857, i. 58

zoological, Mr. Sclater's, i. 59

zoological, discussion of those proposed by various authors, i. 61

zoological, proportionate richness of, i. 64

temperate and tropical, well marked in northern hemisphere, i. 65

and zones, table of, i. 66

comparative richness of, i. 81

and sub-regions, table of, i. 81

order of succession of the, i. 173