Table 40. Public secondary school enrollment In selected science and 



mathematics courses and total enrollment in grades 9 through 12, 



1960-61 and 1969-70 



Index ('7948-49=100) 



1948-49 1960-61 1969-70 



Estimated 

 enrollment (ttiousands) 



Course 1948-49 1960-61 1969-70 



Biology 1,062 1,853 3,197 



Chemistry 412 745 1.160 



Physics 291 402 482 



Economics 255 293 844 



Sociology 1 86 289 495 



Psychology 47 140 344 



Introductory algebra 1.042 1,607 2.627 



Introductory geometry 599 960 1.530 



Advanced mathematics 609 1.174 1.756 



Total enrollment. 



grades 9-12 5.399 8,219 12,442 



100 



152 



230 



Source 



National Science Foundation, Science Resources Studies Highlights, "Enrollment Increase in 

 Science and Mathematics in Public Secondary Schools. 1948-49 to 1969-70" (NSF 71-30). Oct 15. 1971, 



Table 41. Percent change in majors declared by junior-year students, 



1970 to 1971 



Major field 



Physics 



Engineering 



Chemistry 



Mathematical sciences 



Basic social sciences 



"All other" life sciences .... 

 "Other" physical sciences . . 

 Preprofessional life sciences 

 Applied social sciences .... 



Fall 1970 



Fall 1971 



Percent 

 change 



Source ACE Higher Education Panel. Survey o/ Enrollment of Junior-Year Students (Fall 1970 and Fall 1971). 



125 



