Principles upon which Zoological Regions should be formed (p. 53)—Which class
of Animals is of most importance in determining Zoological Regions (p. 56)—
Various Zoological Regions proposed since 1857 (p. 58)—Discussion of proposed
Regions (p. 61)—Reasons for adopting the Six Regions first proposed by Mr.
Sclater (p. 63)—Objections to the system of Circumpolar Zones (p. 67)—Does
• the Arctic Fauna characterise an independent Region (p.68)—Palaearctic Region
(p. 71)—Ethiopian Region (p. 73)—Oriental Region (p. 75)—Australian Re-
gion (p. 77)—Neotropical Region (p.78)—Nearctic Region (p. 79)—Observations
on the series of Sub-regions (p. 80) . - - + 50–82 -
CLASSIFICATION As Arfecting the study or GEographical Distribution.
ON THE DISTRIBUTION OF EXTINCT ANIMALS.