Yerkes Observatory Buildings, Instruments, Equipment, Grounds
| Title | Yerkes Observatory Buildings, Instruments, Equipment, Grounds |
| View | Rotating Arc 52:1198 (2008-003) |
| Series | VI: Yerkes Observatory |
| Description | Physicist Henry Crew's "Rotating Arc" which employed rotating electrodes to measure the wave length of a magnesium line. |
| Subject Terms | Crew, Henry, 1859-1953 | Physicists | Magnesium--Spectra | Measuring instruments | Stars |
| Photograph Date | ca. 1902 |
| Physical Format | Glass plate negatives; 19.4 x 24.8 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 | apf6-00913 |
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