frederick e. olmsted's 1941 "theory and science" mural is located at ccsf's ocean campus in the science hall's west entrance. this is two 12′ x 8′ tempera frescos murals and depicts a range of careers in the sciences, featuring men, women and people of color doing things such as viewing bacteria through a microscope, conducting field research, and excavating dinosaur remains. olmsted also created two large, limestone sculptures of leonardo da vinci and thomas edison heads that are on display in the ocean campus middle courtyard. the giant leonardo da vinci and thomas edison heads were created in 1940 as part of the golden gate international exposition's "art in action" exhibition and later given to ccsf for care and display.