Notes
Notes from Viktor Hamburger's lecture. Trinkaus continues his notes on the Longfin short squid (Loligo pealeii) from page 44, with information covering egg-laying, fertilization, and cleavage. Diagrams of sperm penetration and polar bodies are included
Notes from Viktor Hamburger's lecture. Trinkaus takes notes on "Hans Spemann and Historical Background"
Notes from William Ballard's lecture. Trinkaus continues his notes from page 38 and 39 on gastrulation in Coelenterates. Starts a new section on development of Coelenterates following gastrulation, including diagrams
Notes from Viktor Hamburger's lecture. Trinkaus continues his notes on the Longfin short squid (Loligo pealeii) from page 44 and 45 with further notes on cleavage and the beginning of a new section on the "formation of shell gland"
Notes from O. Schotte's lecture. Trinkaus continues his list from the previous page with "Factors of Differentiation, Potencies" that includes information on transplantation in planaria (includes three diagrams) and notes on the works of Guyenot, Weiss and de Georgi
Notes from Donald Costello's lecture. Trinkaus continues his notes on spiral cleavage and cell lineage with information about Crepidula and a cell lineage chart (cell phylogeny)
Notes from Viktor Hamburger's lecture. Trinkaus begins notes on "Development of the Annelidas" with a three-point list of features of "Annelida & Mollusca", then begins a list of features of "Hydroides (Eupomatus)"
Notes from Donald Costello's lecture. Trinkaus continues his notes on centrifugation of the egg with information on the effects of centrifugation on Asterias and Nereis (with diagram of "Centrifuged Nereis Egg")
Notes from Viktor Hamburger's lecture. Trinkaus continues his notes on the derivatives of the 2d cell, then makes a list of derivatives of the "4d cell", "From larva", and "Larval organs lost"
Notes from William Ballard's lecture. Trinkaus takes notes on the development after gastrulation in Podocoryne, Hydractinia, Medusae, and Tubularia
Notes from Hubert Goodrich's lecture, on the "Devel. Of Mendelian Characters" using the Japanese rice fish (Oryzias latipes) as an example. Discusses Mendelian inheritance in this fish species melanophores
The second notebook of lecture and laboratory notes that John P. Trinkaus took during his time as a student in the Embryology Course in 1939.