Primo Levi : The Periodic Table

Snakes are a clean species. They have neither feathers nor lice. And they don't scrabble in the dirt. And besides, a python is quite a bit larger than a chicken. Perhaps their excrement at 90% uric acid could be obtained in abundance in sizes not too minute and in conditions of reasonable purity. This time I went alone. My wife is a daughter of Eve and doesn't like snakes.