Covers the origins and development of a conference on the evolution of galaxies held at Yale University in 1977 and organized by a committee chaired by B. Tinsley. The topics discussed at the conference and their implications for cosmology are covered, as well as indications of problems yet to be solved. Also prominently mentioned are: Wilhelm Heinrich Walter Baade, Pierre Demarque, Sandra Faber, George Brooks Field, Ken Freeman, Ivan Robert King, Richard Kron, Richard Larson, R. D. McClure, Jeremiah P. Ostriker, Martin J. Rees, Edwin Ernest Salpeter, Allan Sandage, Wallace Leslie William Sargent, Gerard Henri de Vaucouleurs; Kitt Peak National Observatory, and Yale Conference on Cosmology (1977).