Notes from Caswell Grave's lecture. Trinkaus continues his table fro the previous page and takes notes on the larval vs. adult structures (includes chart of time (x-axis) vs. Percentage metamorphosed (y-axis))Lecturer: Caswell Grave, Lecture "Ascidian Metamorphosis" (Information taken from the 1939 Embryology Course Book)Page 69 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, MA