Notes from Hubert Goodrich's lecture. Trinkaus continues his notes from pages 29-31 on the development of Mendelian characters with a few final lines on the "Cells of Species"Lecturer: H.B. Goodrich, Lecture "Development of Color Patterns and of Mendelian characters in fish (Illustrated)." (Information taken from the 1939 Embryology Course Book)Page 32 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