Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
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Additional Formats
[George O. Abell {incl memo JLGreenstein to ISB; c.memo JLG to RMinkowski, OCWilson, & ISB}; Philip H. Abelson; Helmut Arthur Abt {incl c.ltr OCWilson to HAA}; Leason H. Adams; Imam I. Ahmad; Harold Lee Alden; --Alexander; Lawrence H. Aller; Dinsmore Alter]
Bowen
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Additional Formats
[George O. Abell; K. D. Abhyankar; Edward A. Ackerman {CIW}; J. L. Albright, Jr.; Harold L. Alden; H. R. Aldrich {c.ltr Ian Campbell to HRA}; Lawrence H. Aller; Dinsmore Alter {incl c.ltr AGWilson to DA; ltr Eric Durand (Aeronautic Systems, Inc.) to ISB]
Bowen
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Additional Formats
[Giorgio Abetti {incl ltr Francesco Scandone to ISB}; C. H. Adams; Lawrence Hugh Aller {incl notes PWMerrill/R.Mink to ISB; ltr Mrs.Geraldine Porter to LHA}; Dinsmore Alter; American Philosophical Society; John August Anderson]
Bowen
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Additional Formats
[George O. Abell; Fazal Ahmed; Lawrence H. Aller {incl ltr ISB to Athenaeum}; Dinsmore Alter; Mahmoud K. Aly {folded; incl c.ltr LAD to MKA}; American Association for the Advancement of Science; American Astronomical Society {J. Allen Hynek}; R. Ananthakrishnan {folded}; Oscar Arnal; Halton Christian Arp; The Austin Company {Walter E. Hagen}]
Bowen
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Additional Formats
[Lawrence H. Aller; Dinsmore Alter; American Association for the Advancement of Science {Sidney S. Negus; Frank Bradshaw Wood. Incl c.ltr FBWood to NUMayall; c.ltr NUMayall to FBWood; c.ltr FBW to Robert H. Carleton; c.ltr FBW to GMClemence}; American Book Company {Mrs. Winifred Nazarian}]
Bowen
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Additional Formats
[C. G. Abbot; C. H. Adams {incl c.ltr Albert G. Ingalls to CHA}; L. H. Adams {incl ltr PWMerrill to LHA}; G. B. van Albada; Lawrence Aller; Dinsmore Alter; American Philosophical Society {L. P. Eisenhart}; J. A. Anderson; R. G. Anglin; A. Armitage; Robert H. Asher; R. d'E. Atkinson {2 folded}]
Bowen