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Trinkaus playing with electrophysiology rig
Trinkaus playing with electrophysiology rig
Notes from Viktor Hamburger's lecture. Trinkaus continues his notes on the process of ejaculation, including a diagram
Notes from Oscar Schotte's lecture. Trinkaus continues his notes on the the structure of the echinoderm egg, with two diagrams, then begins notes on insemination in starfish with a diagram
Labeled drawing by Trinkaus of frog in late embryo and tadpole stage, Embryology course, graded A, March 7, 1938
Labeled drawing by Trinkaus of unknown organism embryo, Embryology course, April 24, 1938
Notes from Viktor Hamburger's lecture. Trinkaus begins notes on the "Formation of the Spermatophore" with a diagram and discussion of the "Process of Ejaculation" most likely in the squid
Notes from Hubert Goodrich's lecture, 'Historical Phases of Embryology". Trinkaus notes three phases: descriptive, evolutionary, and analytical, and gives notes on each
Notes from Viktor Hamburger's lecture. Trinkaus continues his notes on different researchers approaches to experimental embryology with information about Tyler and Novikoff (includes diagrams)
Labeled drawing by Trinkaus of 21 hour chick embryo, Embryology course, graded A, March 19, 1938
Labeled drawing by Trinkaus of 23 hour chick embryo, Embryology course, graded A-, March 21, 1938
Notes from Oscar Schotte's lecture. Trinkaus begins notes on the 'metamorphosis of Echinoderms' with four diagrams of an echinoderm embryo

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