11. Joslin’s Six-Inch Terrestrial Globe

11. Gilman Joslin, 1860
Joslin’s Six-Inch Terrestrial Globe
Smith Collection: SM-1860-23

This globe demonstrates the changing of seasons, night and day, and eclipses, as the Earth orbits around the Sun, represented by the smaller sphere standing in the center of the instrument. This solar telluric globe won a medal from the Charitable Mechanic Association, who said that it was “very simple in construction, and highly useful for illustrating Geography and Astronomy in schools.” The globe originally came with an instruction manual written by Joslin. In it, he described the globe as “a model of the earth and sun, showing their motions, and illustrating the relations which each sustains to the other.” The second part of the manual presents problems to students that they could solve using the instrument.