Popular Science Monthly (1882)
“ Thus, the death-adder is nearly red in a red soil country, black and gray in black soil, and brown on sand, and is exceedingly sluggish, trusting to the adaptation of his color to the ground he crawls upon for safety. Nothing is more remarkable about snakes than their extraordinary faculty of making themselves invisible. A large carpet-snake can hardly be seen, as he lies along a branch or coiled motionless in the fork of a tree whose bark exactly matches his skin in color. The green tree-snakes are invisible among foliage. ”
