 He resigned in 1905, never to work for a museum again.Some scholars, like Boas's student Alfred Kroeber, believed that Boas used his research in physics as a model for his work in anthropology.Many others, however—including Boas's student Alexander Lesser, and later researchers such as Marian W. Smith, Herbert S. Lewis, and Matti Bunzl—have pointed out that Boas explicitly rejected physics in favor of history as a model for his anthropological research.