John P Trinkaus' MBL Embryology Course Notes, Notebook II, 1939. Page 39

Notes from Viktor Hamburger's lecture. Trinkaus concludes his notes for this lecture with a diagram of CrepidulaLecturer: V. Hamburger, Lecture "Experimental Embryology of Annelida and Mollusca" (Information taken from the 1939 Embryology Course Book)Page 39 of 72 from the second 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, MANote