Manuscripts
A Measurement of the Solar Limb Effect (Abstract)
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Measurement of Ultra-Violet Solar Radiation at Mount Wilson
Manuscripts
Copy, typed ms., 2 pp.
mssPettit papers
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Limiting Accuracy of the Micrometer Caliper
Manuscripts
Copy, typed ms. with corrections, 2 pp.
mssPettit papers
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Focal Changes Produced by Temperature Changes in Coelostat Mirrors
Manuscripts
Copy, typed ms., 2 pp. [for Annual Report, 1922]
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The Application of Vacuum Thermocouples to Astronomical Problems
Manuscripts
Copy, typed ms., 3 pp. [with Seth Barnes Nicholson]
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A -- Miscellaneous
Manuscripts
Giorgio Abetti (5); Adler Planetarium (3); Aircraft Radio Laboratory, War Department (2); Allegheny Ludlum Steel Corp. (5); American Association of Scientific Workers (2); American Astronomical Society [Joel Stebbins] (1); "American Defense" [California Institute, Huntington Library, Mount Wilson Observatory Group] (1); American Geophysical Union [Charles Franklin Brooks, letter re C. G. Abbot's proposal --includes carbons of letters from: Helmut Landsberg, Larry F. Page, Harlan True Stetson, Homer Woodworth Clough, & Chaim Leib Pekeris] (10); American Peoples Encyclopedia (11); Clifford Norman Anderson [includes typed manuscript "A Representation of the Sunspot Cycle", copy letter from John Adam Fleming, & copy typed ms. "Solar Radiation and Geomagnetism," by J. Bartels] (6); L. E. Armfield (2); Betty June Arnold (2); Astronomical Society of the Pacific (2); L. d'Azambuja (1)
mssPettit papers
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The Possible Escape of Prominences from the Sun
Manuscripts
2 copies, typed ms., 3 pp. each
mssPettit papers