REPORTED ARE THE PROCEEDINGS OF A COLLOQUIUM HELD AT STANFORD UNIVERSITY WHICH DEALT WITH THE REASSESSMENT OF THE DESIGN OF INTRODUCTORY COLLEGE BIOLOGY COURSES. THE REPORT INCLUDES A DIVERSITY OF IDEAS AND CONVICTIONS, AGREEMENTS AND DISAGREEMENTS, AS EXPRESSED IN INVITED PAPERS AND IN DISCUSSIONS OF PARTICIPANTS. SOME OF THE TOPICS CONSIDERED ARE (1) HIGH SCHOOL BIOLOGY AND ITS RELATIONSHIP TO COLLEGE INTRODUCTORY BIOLOGY, (2) COURSE CONTENT, (3) ORGANIZING PRINCIPLES AROUND WHICH A COURSE MIGHT BE DEVELOPED, (4) A TWO-YEAR INTEGRATED PROGRAM, (5) A DOUBLE-TRACK PROGRAM INVOLVING THE HISTORY AND PHILOSOPHY OF SCIENCE, (6) THE ROLE OF THE LABORATORY, (7) THE SOCIAL RESPONSIBILITY OF THE BIOLOGY PROFESSOR, AND (8) THE QUESTION OF SEPARATE COURSES FOR MAJORS AND NON-MAJORS. COPIES OF THIS REPORT ARE AVAILABLE FREE OF CHARGE FROM CUEBS, 1717 MASSACHUSETTS AVENUE, N.W., WASHINGTON, D.C. 20036. (DS)