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)
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.
16 leaves/pieces and 1 printed item (2 pages).
Correspondents:
Curtiss, R. H. Fowler, A. Harper, W. E. Henroteau, François C. - Dominion Astrophys. Observatory, Ottawa Lockyer, William J. (1 holograph) Plaskett, J. S. (1 holograph)
Russell, Henry Norris
Shapley, Harlow
Stratton, F. J. M.
Wright, W. H. (1 holograph)
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)
