Reflecting telescopes

View of the 40-inch refracting telescope at Yerkes Observatory
Northern Arizona University's 24-inch Infrared reflector with rock salt prism monochromator attached
Yerkes Observatory 24-inch reflector telescope
The Yerkes Observatory 40-inch refractor as exhibited at the 1893 Columbian Exposition
The polar axis of the Yerkes Observatory 40-inch refractor being lowered into position
The older part of Harvard College Observatory as it appeared when the Shapleys took up residence
Buildings at the Harvard College Observatory
Boyden Station of Harvard College Observatory in Bloemfontein, South Africa
The Remounted Crossley Reflector at Lick Observatory
The original Crossley Reflector at Lick Observatory
View of the Hooker telescope at the Mount Wilson Observatory
Dyson and Shapley at Oak Ridge Observatory
Herschel's Telescope at Slough
Helen Hogg at Richmond Hill
Charles Donald Shane with the 120" Lick mirror at the Lick Observatory
Allegheny Observatory Reflector
Building A and part of the residence of Harvard College Observatory
Harvard College Observatory as it appeared in the 1920's when Harlow Shapley first became director
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