51 leaves/pieces and 2 printed items (4 pages).
Correspondents:
Baillaud, Jules - Paris ? (1 holograph)
Barrows, Albert L. - National Research Council
Dugan, Raymond S.
Jackson, J. - Royal Observatory, Greenwich
Leuschner, A. O.
Plaskett, J. S.
Richtmeyer . F.K. - National Research Council
Stratton, F. J. M. (1 holograph)
34 leaves/pieces and 1 printed item (4 pages).
Correspondents:
Baxandall, F. E. - Solar Phys. Observatory, Cambridge, England (1 holograph)
Campbell, W. W.
Dugan, Raymond S.
Lindblad, Bertil - Stockholm Observatorium, Sweden (2 holograph)
Newhall, H. F. (1 holograph)
Payne, Cecilia H . - Harvard College Observatory
Stratton, F. J. M. (2 holograph)
51 leaves/pieces and 1 printed item (3 pages).
Correspondents:
Campbell, W. W.
Curtiss, R. H.
Dugan, Raymond S. - Princeton University Observatory
Harper, W. E.
Henroteau, François C. (1 holograph)
Lockyer, William J. (1 holograph)
Plaskett, Harry. - Dominion Astrophysical Observatory, Victoria (1 holograph)
Plaskett, J. S.
Schlesinger, Frank - Yale University Observatory
Shapley, Harlow
Stratton, F. J. M.
White, David - National Academy of Science, Washington, D. C.
Wright, W. H.
45 leaves/pieces and 1 printed item (4 pages).
Correspondents:
Bok, Bart J. - Harvard College Observatory
Harper, W. E.
Jones, Sir Harold Spencer - Royal Observatory, Greenwich
Moore, J. H. - Lick Observatory
Oort, Jan H.
Prager, Richard - Potsdam
Rodés, Luis, S.J. -Tortosa
Russell, Henry Norris
Schlesinger, Frank - Yale University Observatory
Shajn, G. - Central Astronomical Observatory, Crimea, USSR
Stratton, F. J. M.
