Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
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Additional Formats
[Melvin D. McCord {folded}; Robert L. McGlasson; Andrew McKellar {incl c.ltr BHRule to AM; c.2 ltrs AM to BHRule; 1 photo}; Dean B. McLaughlin; The Macmillan Co. {Susan S. Prink}; D. H. McNamara; G. C. McVittie {c.ltr GCM to WHPickering}; David Alan Mann; Abraham Marcus; William Markowitz; Sister Mary Generode, O.S.F.; John Mathis; Thomas A. Matthews {incl c.ltr LAD to TAM}]
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
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Additional Formats
[John E. McCarthy; Andrew McKellar; Dean B. McLaughlin; D. H. McNamara; Paolo Maffei; Antonio J. Saldías Maninat {crank}; Hafiz Muhammad Ayub Marwat; Max Mason; N. U. Mayall {incl c.ltr NUM & JNeyman to JHOort}; Anthony J. Meadows {incl ltr GCMcVittie to ISB; ltr ISB to GCMcVittie}]
Bowen
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Additional Formats
[Fr. Martin McCarthy, S.J.; James Dwyer McGee; Agustin Pacheco Machado; Mrs. Robert R. McMath; Macmillan & Co., Ltd. {Moira A. Aitken}; The Macmillan Co. {Patricia Crum; Corinne Jacker}; D. H. McNamara; Bernth Malm; K. G. Malmquist; Stephen P. Maran {incl c.ltr SPM to WCMiller}; Gerald Marks {Belsck Instrument Corp}; Marquardt Corp. {John G. Frayne}; Harley Marshall]
Bowen
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Additional Formats
[W. H. McCrea; J. D. McCullough; F. H. MacGougan; Andrew McKellar {incl ltr RBKing to AMcK}; Murdoch McKenzie {incl c.ltr EBBiesecker to MMcK}; Robert R. McMath {folded}]
Bowen
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Additional Formats
[Dan Tassi; James H. Tatsch; Barney L. Taylor; B. G. Teubner; Walter E. Thwaite, Jr. {Research Corp. --re DEOsterbrock proposal}; "Transportation" {agenda for meeting on problems of transportation at MWPO}; Ben Traxler {+ 1 photo}; James R. Trew {Space Technology Labs}; Lewis Turtle; Merle A. Tuve {incl c.ltr MAT to CPH; c.ltr MAT to MJKimmel; c.ltr MAT to WABaum; c.ltr MAT to RMinkowski}; J. E. Tyler {re Lomb Medal}]
Bowen