Notes from Charles Packard's lecture. Trinkaus continues his notes from Packard's morning lecture on the history of embryology (begin page 81) with continued notes on Spallanzani's work, Wolff, Blumenbach, and von BaerLecturer: C. Packard, Lecture "Topics from the history of embryology" (Information taken from the 1939 Embryology Course Book)Page 84 of 113 from the first notebook of lecture and laboratory notes that John P. Trinkaus took during his time as a student in the Marine Biological Laboratory Embryology Course in 1939 in Woods Hole, MA