J. T. Gulick Quote

When a number of closely related varieties and species, occupying adjoining districts of very limited extent, come under observation, the problems connected with the origin of species are liable to be forced upon us.


Evolution, Racial and Habitudinal: Racial & Habitudinal, Chapter I (p. 1)

Picture Quote 1

When a number of closely related varieties and species, occupying adjoining districts of very limited extent, come under observation, the problems...

Picture Quote 2

When a number of closely related varieties and species, occupying adjoining districts of very limited extent, come under observation, the problems...

Picture Quote 3

When a number of closely related varieties and species, occupying adjoining districts of very limited extent, come under observation, the problems...

Picture Quote 4

When a number of closely related varieties and species, occupying adjoining districts of very limited extent, come under observation, the problems...