The first orreries in America
By: by Harrold E. Gillingham.
Publisher: Franklin Institute
Published: 1940
Place of publication: [Philadelphia]
Language: eng
Number of pages: 99
Subjects: Planetaria -- United States
Notes: Caption title.

"Reprinted from the Journal of the Franklin Institute, vol. 229, no. 1, January 1940."

Includes bibliographical references.