First Pages #3: Concealing-Coloration in the Animal Kingdom by Gerald H. Thayer (1909)
Protective coloration, with its achievement of the wonderful inconspicuousness of many wild animals in their native haunts, has been recognized since the earliest days of Natural History study. But the true character of this phenomenon has been ignored or misinterpreted, and the phenomenon itself has been observed only in one small corner of its wide fi…