Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
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Additional Formats
[John F. Reback; R. O. Redman; F. O. Rice; Paul H. Roberts; Walter Orr Roberts {incl c.ltr WOR to HWBabcock}; H. P. Robertson {c.ltr ARSandage to HPR}; Hans Roth; Paul McRae Routly; Royal Astronomical Society; Albert B. Ruddock; John A. Russell {incl c.ltr JAR to FZwicky; ltr FZwicky to JAR}]
Bowen
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Additional Formats
[Kalervo Rankama; Arnold T. Ratzlaff; R. O. Redman {incl c.ltr HWBabcock to ROR}; Donald E. Richeson; F. Rigaux; Mrs. E. M. Roberts; Walter Orr Roberts {incl c.ltr HWBabcock to WOR}; W. J. Robinson; John B. Rogerson, Jr. {incl c.ltr HWBabcock to JBR}; Nancy G. Roman; Judith Rook {incl ltr Margaret Garrett {RAS} to ISB; ltr ISB to AHunter}; Bruce H. Rule {c.ltr BHR to Francis E. Dart}; Campbell Rutledge, Jr.]
Bowen
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Additional Formats
[Incl c.ltr AB to ABMeinel; c.ltr CAFederer,Jr. to AB; c.ltr AB to CAFederer; c.3 ltrs AB to FZwicky; c.2 ltrs FZwicky to AB; c.ltr AB to Emil Herzog]
Bowen
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Additional Formats
[Charles A. Federer, Jr. {incl c.ltr CAF to GHHall}; Vic Filmer {folded}; Finsen Union Observatory; Mildred L. Foreman]
Bowen
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Additional Formats
[Bo Maung {crank}; Mrs. Margaret W. Mayall {incl c.ltr ISB to Mark Howarth}; L. G. Melville {incl c.ltr LAD to LGM; memo Edythe Baker to ISB}; Armando Mencía; Betty R. Mensack; Mrs. Mary Louise Black Menschel; John E. Merrill; Metachem, Inc. (U. Heubaum}; Gerhard R. Miczaika; M. V. Migeotte {incl c.ltr HWBabcock to MVM}; Rev. Walter J. Miller, S. J.; Orren C. Mohler; George W. Morey {incl ltr ISB to E. S. Farrow}; Louis F. Muller, Jr.; Luis Münch {incl c.ltr LAD to LM}]
Bowen
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Additional Formats
[John B. Rogerson, Jr.; Charles E. Roos; J. Rösch{incl c.ltr WABaum to JR; ltr JR to WABaum}; Moe William Rosen {c.ltr MWR to Robert Leighton}; The Rosicrucian Order {Rodman R. Clayson}; S. Rosseland {c.ltr HWBabcock to SR}; H. J. Roth; Royal Astronomical Society; Royal Greenwich Observatory; E. C. Rubridge; Stephen Rudin; John A. Russell; Paul R. Russell]
Bowen