Animal coloration : an account of the principal facts and theories relating to the colours and markings of animals (1892)
Beddard Frank E. (Frank Evers), 1858-1925, Royal College of Physicians of Edinburgh · London : S. Sonnenschein · leaf 88
'■^ ANIJIAI. COLORATION. are oflfered by the raven on the one hand and the Arctic fox on the other ; it does undergo a certain amount of change at the beginning of winter, becoming not white, but greyer. Sometimes closely allied forms show a diiference in their susceiotibility to these climatic… … Pig. 1. -Arctic Fox. dinavian- lemming {Myocles lemmus) does not undergo this change. The principal animals which change to white in winter, in addition to those already referred to, are the jJtarmigan, the American hare {Lepus a^nericanus), the ermine and stoat. With regard to the Arctic fox…
Animals - Color
Internet Archive · Royal College of Physicians in Edinburgh · Public domain (published before 1931). Free to use for anything.
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