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The first notebook of lecture and laboratory notes that John P. Trinkaus took during his time as a student in the Embryology Course in 1939.
Notes from William Ballard's lecture. Trinkaus takes notes on different experiments on regeneration including information on "Poisons" and "Electricity"
Notes from Viktor Hamburger's lecture. Trinkaus continues his notes on experiments on early stage embryos with several diagrams and information about Lillie's research
Notes from William Ballard's lecture. Trinkaus continues his notes on different experiments with information on "Pulverizing"
Notes from Donald Costello's lecture. Trinkaus continues from the previous page with his series of diagrams on the development of the barnacle embryo, including information on the cell lineage
Notes from Alfred Sturtevant's lecture. Trinkaus begins his notes on "Genes and Cytpolasm" with background on different theories of inheritance
Notes from Alfred Sturtevant's lecture. Trinkaus takes notes on the role of the cytoplasm in inheritance, and Goldschmidt's research
Notes from Alfred Sturtevant's lecture. Trinkaus concludes his notes with a line on Sturtevant's take on Goldschmidt and "But this specificty is due to the chromosomes"
Notes from William Ballard's lecture. Trinkaus begins notes on the "Embryology of the Tunicates" with a list of characteristics, then begins a section on "Embryology of Ascidians" (with a diagram)
Notes from William Ballard's lecture. Trinkaus takes notes on the work of different researchers, like Child, Beckwith, Maas, Conklin, on on regeneration
Notes from O. Schotte's lecture. Trinkaus continues his notes on regeneration with information about the work of Spemann, and relates regeneration to proliferation and differentiation
Notes from Donald Costello's lecture. Trinkaus takes notes on "Astracus--Embryology of." with a series of diagrams from the zygote to several cell stage