[47] Felis domestica.
[48] Pennant, “British Zoology.”
[49] “Expression of the Emotions in Man and Animals.”
[50] “Natural History of Selborne.”
[51] White’s “Selborne.”
[52] Felis chaus.
[53] Felis lynx.
[54] Tschudi, quoted by Brehm.
[55] Felis pardina.
[56] Felis canadensis.