Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
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Additional Formats
[Arnold Oettel; Office of Naval Research; Sozo Okada; J. H. Oort {incl c.ltr Gerald F. W. Mulders to JHO}; P. Th. Oosterhoff {incl c.ltr WABaum to PTO; c.ltr HWB to PTO}; Optical Society of America {Kasson S. Gibson}; Optical Society of Southern California; Martha Ortlieb {Macmillan Co}; Donald E. Osterbrock {incl 2 ltrs Henry Allen Moe to ISB}]
Bowen
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Additional Formats
[Charles Robert O'Dell; G. J. Odgers {see also R. M. Petrie}; Yngve öhman; Jan H. Oort; Donald E. Osterbrock; Tobias Owen {c.ltr AJDeutsch to TO}]
Bowen
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Additional Formats
[Douglas G. O'Brien {Corning Glass Center}; G. J. Odgers; Stephen O'Donnell {& Irving D. Hirschfield}; Ruth Oedin; Richard Ogden; Yngve öhman {c.ltr HWBabcock to Yö}; J. B. Oke; Frank O'Malley; Jan H. Oort {incl c.ltr JWB to JHO; c.ltr JHO to Henry T. Heald; c.ltr WCMiller to JHO}; P. Th. Oosterhoff; Optical Society of America {Wallace R. Brode}; Dwayne Orton {Think magazine}; Mabel Romero de Osnovikoff; Donald E. Osterbrock]
Bowen
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Additional Formats
[Morrough P. O'Brien; Paul H. Oeser; Guy C. Omer, Jr.{incl 2 ltrs GCO to MLHumason}; Jan H. Oort {& M. Minnaert}; Jan H. Oort; Jesse Ormondroyd; Valfrids Osvalds]
Bowen
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Additional Formats
[Madeline Ochsé; G. J. Odgers {incl ltr RMPetrie to ISB; ltr GJO to OCWilson; c.ltr OCWilson to GJO}; John L. Odom; Office of Naval Research; Yngve öhman {incl c.ltr HWBabcock to Yö}; Jan H. Oort {incl c.ltr JHO to CPH}; P. Th. Oosterhoff; Ygnacio A. Ortiz {folded}; T. G. Ostrom]
Bowen
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Additional Formats
[Harold D. Babcock {c.2 ltrs HDB to V.Bush}; Horace W. Babcock {c.ltr PAS to HWB; 2 memos on diffraction grating project}; H. C. Bailey; Edythe W. Baker; Josefina Romani de Barbosa; S. J. Barrett {c.ltr SJB to Percy A. Campbell}; J. M. Barnothy {ltr HWBabcock to JMB}; Morris D. Basch; Ailene (Mrs. G. Philip) Bauer; W. W. Baustian {c.ltr BHRule to WWB}; G. W. Beadle; George F. Beattie; A. L. Bedell; Bendix Aviation Corp., Pacific Division {T. H. Jackson}; Ralph R. Bennewitz {c.ltr EBBiesecker to RRB}; William N. Berg; Marjorie Biedermann {in re SYCh'en}; Leon Blitzer]
Bowen