Subjects: Fertilization and Pregnancy - Digital Collections - National Library of Medicine Search Results

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1. Time of conception and duration of pregnancy

Author(s):: Engelmann, George J. (George Julius), 1847-1903, author
Publication:: [St. Louis?] : [publisher not identified], [1880?]
Subject(s):: Fertilization
Pregnancy

2. Time of conception and duration of pregnancy

Author(s):: Engelmann, George J. (George Julius), 1847-1903
Publication:: St. Louis : McCormick, Nixon & Co., printers, 1880
Subject(s):: Fertilization
Pregnancy
Missouri