 However, there was also a logo of a giant Lehigh Engineer looking through a surveyor's transit while an airliner flew over him and a diesel passenger train steamed beneath his feet in use at Lehigh during the 1950s and 60s.As the university expanded following the advent of coeducation in 1971, while the number of engineering students remained steady, the percentage of students enrolled in engineering declined from 50% to about 30%.As a result, during the school's 1988 appearance in the men's NCAA basketball tournament, TV commentators were encouraged to refer to the school by its colors, Brown and White.