Traitement expérimental d'une hémorragie chez le chien (1926) is one of Jean Painlevé’s earliest scientific films, documenting a medical experiment on hemorrhage treatment in a dog. Shot with clinical precision, the film captures the intersection of veterinary science and cinematic observation, offering a raw and unfiltered look at early 20th-century medical practices. Though stark and unsettling, it marks Painlevé’s commitment to using film as a tool for scientific education and experimentation—an early example of his evolving visual language at the threshold of science and ethics.