Manuscripts
Short comparative description of 100 and 200-inch reflectors' photographic capabilities
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"The Semi-Centennial of the 100-Inch Reflector"
Manuscripts
The collection consists of the professional papers of Alfred Harrison Joy. It includies both incoming and copies of going correspondence (3 boxes) and research files (manuscripts, lectures, notebooks, etc.) related to Joy's study of stellar radial velocities, variable stars, T Tauri stars, and galactic structure.
mssJoy papers
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Notebook: 100-inch Reflector [undated]. 1 item
Manuscripts
The papers consist of Francis Pease's research papers. It contains correspondence, manuscripts, Pease's notes (including his work notes, many of which contain various drawings and diagrams by him), reprints, photographs, etc. Topics covered in the collection are numerous and include the Mount Wilson Observatory, the Yerkes Observatory, astronomy and astronomers. The majority of it relates to Pease's research on the speed-of-light (highlighting his manuscript with Albert A. Michelson), Ether drift, his observations of the Moon, the Sun, Jupiter, star diameters, galaxies, nebulae, as well as his work on interferometers, and the design and construction of telescopes.
mssPease papers



