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Notes from Hubert Goodrich's lecture. Trinkaus' notes on the timing and efficacy of fertilization in sea water (with charts)
Notes from Hubert Goodrich's lecture. Trinkaus continues his notes on 'Spawning periods from page 2', and adds notes on 'Characteristics of Unvertifilzed Fundulus Egg' and 'Fertilization'. The 'Characteristics of Unfertilized Fundulus Egg' includes a diagram of the egg and the egg membrane. The 'Fertilization' includes a diagram of the first cleavage
Notes from Donald Costello's lecture. Trinkaus begins with notes on the history of research on the embryology of crustacea, including Mueller and Haeckel, including a small phylogeny of crustaceans, and some notes on the general embryology of the clade
Notes from Viktor Hamburger's lecture. Trinkaus continues his notes onexperimental isolation of different pieces of the embryo (with diagrams) and notes on the effects of removing and rearranging cells in the embryo
John P. Trinkaus wearing a striped shirt, light colored jacket, and glasses. Trinkaus is outside, and looking directly at the camera.
John P. Trinkaus is wearing a a striped shirt, light colored jacket, paisley tie, and glasses. Trinkaus is standing in front of a stone wall, looking at the camera and smiling.
John P. Trinkaus wearing a long-sleeved white shirt, striped tie, and glasses. Trinkaus has a moustache and is seated in a laboratory, in front of a microsdope. He is leaning on a note pad and looking at the camera.
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 Oscar Schotte's lecture. Trinkaus continues notes from page 86 on the metamorphosis of echinoderms with five more diagrams (labeled 3-7).
Notes from Viktor Hamburger's lecture. Trinkaus takes notes on Harrison's work on nerve growth in the frog and chick wing