Note 65 — Chapter XVII · ON THE GOOD EFFECTS OF CROSSING, AND ON THE EVIL EFFECTS OF CLOSE INTERBREEDING.
Reading edition
Quoted by Dr. Murie, in ‘Proc. Zoolog. Soc.,’ 1870, p. 40.
Reading edition
Quoted by Dr. Murie, in ‘Proc. Zoolog. Soc.,’ 1870, p. 40.