A handler extracts venom from a rattlesnake in this clip from “Ross Allen Reptile Institute,” ca. 1960 (13:33). During the demonstration, the snake’s fangs are pressed against a glass to collect the substance. In one especially tense moment, the handler even exposes a fang with his finger. The film’s narrator explains that venom collected at the institute was provided to laboratories for scientific study and the production of life-saving serums. The full tourism film follows Allen and his team a