Title | Yerkes Observatory Buildings, Instruments, Equipment, Grounds |
View | Optical Shop 20:175 (2008-003) |
Series | VI: Yerkes Observatory |
Description | In the Yerkes Observatory Optical Shop, a view of the grinding edge of the glass speculum that became the mirror for the Mount Wilson Observatory 60-inch reflector telescope. Cast by the Saint-Gobain Glassworks in France, William Hale purchased the speculum as a gift for his son, Yerkes Observatory director George Ellery Hale. |
Subject Terms | Hale, George Ellery, 1868-1938 | Hale, William, born 1836 | Compagnie de Saint-Gobain | Mirrors | Grinders (Tools) | Reflecting telescopes |
Photograph Date | 1898-09-26 |
Physical Format | Glass plate negatives; 19.6 x 24.3 cm |
Location | 373 West Geneva Street | Williams Bay, Wisconsin |
Campus Grid | Y01 |
Collection | Archival Photographic Files |
Repository | University of Chicago Library, Special Collections Research Center |
Image Identifier | apf6-00647 |
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