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3-D Objects, Models, Sculpture
Scientific prediction dial
- Author / Creator
- Available as
- Physical
Details
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- Format
- 3-D Objects, Models, Sculpture
- Language
- English
- Publication
-
- [United States?] : [publisher not identified], [1937?]
- ©1937
- Physical Details
-
- 1 volvelle : illustrations ; 21 x 21 cm (wheel 17.5 cm diameter)
- OCLC
- on1112112253
- "Copyright '37 by Carleton Deederer, A.B., M.D., M.S."
- A volvelle for determining "safe" and "fertile" periods in the female reproductive cycle, by turning a dial to the month and day when the next menstrual period is due to begin.
- Includes a small pencil attached to the volvelle by a string.
Subjects
- Fertility -- Charts, diagrams, etc.
- Fertility, Human -- Charts, diagrams, etc.
- Fertility.
Medical Subject Heading