Manuscripts
M -- miscellaneous
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M -- Miscellaneous
Manuscripts
Daniel Trembly MacDougal (3); T. O. McGrath (2); Col. Majors (1); Ross W. Marriott (2); Donald Howard Menzel (10); Meteorological Office, Air Ministry (1); Joseph Haines Moore (4); Laird M. Morris (1)
mssPettit papers
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M -- Miscellaneous
Manuscripts
J. B. McDowell Co. (2); Donald Howard Menzel (7); John Anthony Miller (1); Robert Andrews Millikan [form letter announcing his leaving Chicago] (2)
mssPettit papers
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W -- miscellaneous
Manuscripts
[Richard W. Warner (5); Harold Weaver (3); H. Percy Wilkins (includes letter from J. P. J. Chapman) (3); Howard R. Williams (includes letter from Mark Finley) (4)]
mssHumason papers
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M -- miscellaneous
Manuscripts
[Elizabeth McClellan (2); Edward P. MacDonald (2); The Macmillan Co. (1); W. G. Mandzuk (2); Sister Mary Therese, B.V.M. (5); Maryland Academy of Sciences (2); John B. Mast (2); D. Bruce Mathewson (2); Elizabeth Maxwell (2); V. B. Meen (2); Paul Willard Merrill (re Ralph Wilson) (1); Gerald Merton (2); Harcourt S. Middleton (4); Orren Cuthbert Mohler (1)]
mssHumason papers
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M -- miscellaneous
Manuscripts
[George V. McCauley (3); Walter Machota, Jr. (2); T. C. Mansfield (4); ? Marshall (1); J. R. Meadows (2); Per Melin (2); Gerald Merton (3); Orren Cuthbert Mohler (3)]
mssHumason papers
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M -- Miscellaneous
Manuscripts
G. Kent McCauley (2); Duncan E. Macdonald (2); Mrs. Elizabeth McGaffey (2); McGraw-Hill Book Co., Inc. (2); Andrew McKellar (1); Robert Raynolds McMath (19); The MacMillan Co. (3); Mrs. Allison Marti (1); L. A. Matheson (1); John Campbell Merriam (2); Meteorological Ofice, South Kensington, London (1); Meteorological Office, Stonehouse, Gloucestershire (1); William Ferdinand Meyer (1); John T. Middleton (2); George Wilber Moffitt [re Optical Society of America] (8); Mrs. A. T. Monk (2); Paul Mooney (1); William D. Morgan (7)
mssPettit papers