Manuscripts
O -- Miscellaneous
You might also be interested in
Image not available
O -- Miscellaneous
Manuscripts
Optical Society of America (10); Oregon Tuberculosis Association (1); F. H. Osler (2)
mssPettit papers
Image not available
O -- Miscellaneous
Manuscripts
Brian O'Brien (2); Optical Society of America [some re R. R. McMath] (6)
mssPettit papers
Image not available
O -- Miscellaneous
Manuscripts
Optical Society of America (14); Bernard Levussove Oser [Food Research Laboratories, Inc.] (3)
mssPettit papers
Image not available
O -- Miscellaneous
Manuscripts
Optical Society of America [includes orrespondence with their Journal as well and typed manuscript "The Registering Microphotometer of the Mount Wilson Observatory"] (28)
mssPettit papers
Image not available
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
Image not available
W -- Miscellaneous
Manuscripts
K. P. Walton [Back-Yard Astronomer's Society] (3); The Warner & Swasey Co. (2); Ph. WehrlJ (1); S. T. Welchover (2); Whitehead & Kales Co. (3); Walter Ticknor Whitney (4); D. P. Wilson (2); Leonard William Wing (3); Wollensak Optical Co. (1); The World Calendar Association, Inc. (2); Frederick Eugene Wright (34)
mssPettit papers