Ritchey, George Willis, 1864-1945

23 results.

1900 Solar Eclipse Expedition

1900 Solar Eclipse Expedition

Group photograph 27:1132 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

24-inch Reflector Telescope 101:6 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

24-inch Reflector Telescope 117:27 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

24-inch Reflector Telescope 128:166.1 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

24-inch Reflector Telescope 33:1084 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

24-inch Reflector Telescope 33:1164 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

24-inch Reflector Telescope 33:1183 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

24-inch Reflector Telescope 34:166 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

24-inch Reflector Telescope 34:1878 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

24-inch Reflector Telescope 56:2218 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

24-inch Reflector Telescope 65:1154 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

24-inch Reflector Telescope 67:1160 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

24-inch Reflector Telescope 67:166 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

24-inch Reflector Telescope 68:4 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

24-inch Reflector Telescope 69:41 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

24-inch Reflector Telescope 69:42 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

24-inch Reflector Telescope 72:1142 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

40-inch Refractor Telescope 1:423 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

40-inch Refractor Telescope 2:423 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Bruce Observatory 22:1589 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Landscape 22:1590 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Main Observatory 30:494 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Main Observatory 43:494 (2008-003)
Series VI: Yerkes Observatory

23 results.