5 Pages in Charles Darwin's Library associated with "fauna - rattlesnake"

Essay on the physiognomy of serpents.
By: Schlegel, H. (Hermann),
Publication info: Edinburgh :Maclachlan, Stewart & Co.,1843.
Pages: Page 99 Page 99 Page 100 Page 100
In Sachen Darwin's insbesondere contra Wigand.
By: Jaeger, Gustav.
Publication info: Stuttgart :E. Schweizerbart,1874.
Pages: Page 117