When he began there in 1891, he was the first black student at Iowa State. Carver's Bachelor's thesis for a degree in Agriculture was "Plants as Modified by Man", dated 1894. Iowa State University professors Joseph Budd and Louis Pammel convinced Carver to continue there for his master's degree. Carver did research at the Iowa Experiment Station under Pammel during the next two years. His work at the experiment station in plant pathology and mycology first gained him national recognition and respect as a botanist. Carver received his Master of Science degree in 1896. Carver taught as the first black faculty member at Iowa State.