Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
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Additional Formats
[Dean B. McLaughlin; Mary Macphee; Oscar S. Marshall; M. R. Marston {incl 1 ltr MRM to Bruce Rule; 1 copy ltr RRMcMath to MRM}; Max Mason; Margaret W. Mayall; Nicholas Mayall {incl 1 copy ltr NM to R.Minkowski; 1 copy ltr NM to MLHumason}; William F. Meggers {incl copy mss "Designation of Miscellaneous Atomic Energy Levels," by Charlotte E. Moore & "Notes on Spectroscopic Notation," by H.N.Russell}; Aden B. Meinel {incl 1 photo of Infrared spectrum of night sky}; Donald H. Menzel {incl 1 copy ltr DHM to J.J.Nassau}; J. Glenn Menzel {incl 1 ltr JGM to Harley Marshall}; Madeline Gwynne Merchant; Orren C. Mohler; Phil Morgan; Thomas F. Murray]
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
[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
[{Mrs.} Alice MacIntyre {NRC}; R. E. Marshak; Margaret Matson; Sister Mary Therese, BVM; Nicholas U. Mayall; Donald H. Menzel {incl c.ltr DHM to WBaade}; G. R. Miczaika; Max B. Miller; Rev. Walter J. Miller, S.J.; William A. Miller; William C. Miller; Peter H. Millman; Rudolph Minkowski {& ADeutsch, Guido Münch, and SBNicholson}; Henry Allan Moe; Orren C. Mohler; George W. Morey; Guido Münch]
Bowen
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Additional Formats
[Incl c.ltr HWB to E. Ruth Hedeman; ltr Orren Mohler to ISB]
Bowen
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Additional Formats
[R. Minkowski; M. Minnaert; Orren C. Mohler; Irene Monahan; Lyle J. Moore; George W. Morey {c.ltr GWM to Harold C. Urey}; W. W. Morgan; T. M. Morse; Donald C. Morton; Guido Münch; K. J. Murata]
Bowen