Has been at Grinell College since at least 1928.
Table and all attachments cost $40. Apparatus includes rotator table, Rotator part with brass circles to show shape of rotating earth, other Rotator part demonstrating centrifugal force (like Watt governor), Doppler whistle, and Rotator crank wheel.
One of these is in the Smithsonian labeled a “dosage meter.” It probably is part of a medical fake.
Sent to Grant Gale at Grinnell by John Bardeen at Bell Telephone Labs in 1950
According to Grant Gale, this belonged to Dr. Lemley, the first dentist in Grinnell to have x-rays.
Has a rotary stage, no eyepieces, and 3 objectives but is one missing.
This microscope has 3 objectives. It belonged to Dr. O.F. Parish.