Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
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Manuscripts
[Cecilia Helena Payne-Gaposchkin (2); William Henry Pickering (3); Daniel M. Popper (2); Popular Astronomy (Curvin Henry Gingrich) (14)]
mssHumason papers
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Additional Formats
[Steve A. Pappas; Calvert Pascual {1 folded}; Cecilia Payne-Gaposchkin {& Sergei Gaposchkin}; Richard S. Perkin; Charles W. Petee; Arthur Pound]
Bowen
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Manuscripts
[George Pal Productions, Inc. (1); Martha Parlette (2); M ximo Pe¤a Matos (5); George E. Pentland (5); A. Keith Pierce (1); Popular Mechanics (Richard F. Dempewolff) (4); H. Randolph Pyle (3)]
mssHumason papers
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Manuscripts
[Richard Hamilton (AAVSO) (4); Robert G. Harrington (1); William Merry Heina (4); Elliott C. Hensel (6); Rockwell Hereford (1); Karl C. Herndon (1); George H. Hughes (2); L. E. C. Hughes (4); Robert Hutton (2)]
mssHumason papers
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Manuscripts
[Wayne Harbour (2); Susan Harper (2); Albert J. Harrison (3); David Hart (2); Lud. Hebeier (3); Karl Herndon (1); Cedric E. Hesthal (2); Mrs. Daisy M. Hill (2); Amos H. Hoff (2); Gerald J. Holton (1); Lewis Howard (2); H. R. Howell (2); Walter J. Howell (2); Grace (Mrs. Edwin P.) Hubble (1); Charles Morse Huffer (2)]
mssHumason papers
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Additional Formats
[Thornton Page {incl c.ltr TP to JJNassau}; Daryl Parker; Cecilia Payne-Gaposchkin {incl ltr Harvard Univ Press to ISB; ltr ISB to HUPress}; Pendray & Co. {G. Edward Pendray}; E. Penkala; P. John Perry {crank{; James S. Pickering {incl ltr Joseph M. Chamberlain to ISB; c.ltr WCMiller to JMChamberlain}; W. H. Pickering {JPL}; S. B. Pikelner; Howard Pohn {& Bruce C. Murray --incl memo WCMiller to ISN}; Daniel M. Popper; Popular Science {Martin Mann}; George W. Preston; Alois T. Purgathofer]
Bowen