Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
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Additional Formats
[J. Howard McMillen {NSF -re SYCh'en}; Frank J. McMullen; D. H. McNamara {incl ltr DHMcM to OCWilson; c.memo JLGreenstein to ISB}; E. J. Macomb; Sister Mary Therese, BVM; Robert Arthur Matthews {incl ltr written by RAM under pseudonym "Robert Florey"}; Thomas A. Matthews; D. M. May; N. U. Mayall; Donald H. Menzel {incl c.ltr OStruve to DHM; c.ltr OStruve to James Marshall; c.ltr DHM to David McK. Key; c.ltr ARSandage to DHM; c.ltr DHM to LSpitzer}; Paul W. Merrill; l. Mestel; G. R. Miczaika; William C. Miller; M. Minnaert; Alvin L. Mitchell; Henry Allen Moe; Orren C. Mohler; George W. Morey; William Wilson Morgan]
Bowen
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Additional Formats
[Donald J. Mary; Sister Mary Therese, BVM; Clifford Mattison; Nicholas U. Mayall; Hester Meech {re Gingrich's death}; C. E. Kenneth Mees; William F. Meggers {incl 1 reprint}; Aden B. Meinel; William V. Mendenhall; Donald H. Menzel {incl 1 ltr SBNicholson to DHM}; Paul W. Merrill; Gerald Merton; S. N. Milford]
Bowen
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Additional Formats
[William F. Meggers; Eugenio Mendoza; Kochn Menon {incl c.ltr ASandage to KM}; Donald H. Menzel {incl ltr DHM & CPayne-Gaposchkin to ISB}; Robert V. Meyer; Barbara Middlehurst; Franklin Miller, Jr.; James Miller {incl ltr Mary S. (Mrs. Harley) Marshall to JM; ltr ISB to MSM}; R. F. Miller {Nortronics}; William C. Miller]
Bowen
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Additional Formats
[L. N. Mavridis; Nicholas U. Mayall {c.ltr BHRule to NUM}; Theodore G. Mehlin; Donald H. Menzel {incl c.ltr DHM to LGoldberg}; Mark Merritt; Joseph S. Miller; William C. Miller; K. E. Mills; Orren C. Mohler; Mrs. Katharine B. Moore; W. W. Morgan; T. M. Morse; Guido Münch; Luis Münch; P. T. Murphy]
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
[Flora M. McBain; W. H. McCrea {re MLHumason}; Victor C. McKee; Andrew McKellar; Dean B. McLaughlin; D. H. McNamara; G. C. McVittie; M. R. Madwar {re location of Helwan Observatory & Mt. Wilson & Palomar}; S. L. Malurkar; A. Marechal; A. Marlow; Thomas A. Matthews; Aden B. Meinel {c.ltr WABaum to ABM}; Donald H. Menzel {incl c.ltr ANNesmeyanov to DHM; c.tlgm JPBardin to DHM; c.tlgm DHM to ANNesmeyanov; c.ltr DHM to K.Kordylewski}]
Bowen