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- Author(s):
- Wood, E. Allen, author
- Publication:
- Pittsburgh : Herald Printing Co., [1886?]
- Subject(s):
- Heredity
Aptitude
Eugenics
- Author(s):
- Allan, George S., author
- Publication:
- Boston : Press of Rockwell and Churchill, 1892
- Subject(s):
- Dentistry
Heredity
Environment