John S. Rigden and Sheila
Tobias, in The Sciences (Jan.-Feb. 1991), New York Academy of Sciences, 2 E.63rd St., New York, N.Y. 10021.
Every year nearly 500,000 students gradu- ate from high school and go on to college with the intention of majoring in science or engineering. But every year only 200,000 college students complete one of those majors. After taking introductory sci- ence courses, most of the students initially oriented toward science change their minds. Meanwhile, of the undergraduates...