Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds
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Yerkes Observatory Buildings, Instruments, Equipment, Grounds
40-inch Refractor Telescope 26:1058 (2008-003)
VI: Yerkes Observatory
Yerkes Observatory 40-inch refractor telescope with a view of its grinding worm-wheel bearing.
Refracting telescopes | Bearings (Machinery)
1897-08-13
Glass plate negatives; 24.8 x 19.8 cm
Alvan Clark & Sons; Warner & Swasey Company
373 West Geneva Street | Williams Bay, Wisconsin
Y01
Archival Photographic Files
University of Chicago Library, Special Collections Research Center
apf6-00320

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