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Hand-drawn Diagram

Labeled drawing by Trinkaus of 33 hour chick embryo, Embryology course, March 19, 1938
Labeled drawing by Trinkaus of crepidula cells, Embryology course, March 13, 1938
Labeled drawing by Trinkaus of 72 hour chick, Embryology course, graded B+, April 22, 1938
Labeled drawing by Trinkaus of cell division in frog eggs, Embryology course, March 8, 1938
Labeled drawing by Trinkaus of spiral cleavage in crepidula, Embryology course, graded B+, February 28, 2938
Labeled drawing by Trinkaus of Ascaris megalocephala, Embryology course, February 21, 1938
Labeled drawing by Trinkaus of cleavage in blastula of whitefish, Embryology course, graded A, February 26, 1938
Labeled drawing by Trinkaus of cat ovary, Embryology course, February 12, 1938
Labeled drawing by Trinkaus of rat testis, Embryology course, February 13, 1938
Labeled drawing by Trinkaus of salamander testis, Embryology course, graded A, February 7, 1938
Labeled drawing by Trinkaus of cat ovary, Embryology course, February 13, 1938
Labeled drawing by Trinkaus of four stages in the formation of spermatozoa (arphia), Embryology course, February 14, 1938

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