178 - [JUBILEE OF SCIENTIFIC ACTIVITY]

[JUBILEE OF SCIENTIFIC ACTIVITY] ARCHIVES of Dimitri RIABOUCHINSKY DEMTCHENKO Basile - Autograph • Extensive correspondence from Basil Demtchenko, secretary of the organizing committee for events held on the occasion of D. P. Riabouchinsky’s scientific jubilee, with various representatives of the LAS community, including aerograms and envelopes. 1953–1954. In English and French. Total: 128 pages (typescripts), 13 pages (handwritten), various formats, as is. Text of an article (6-page brochure). Correspondents include: Henri Villet, A.R. Metral, L. Escande, H. Dryden, A.P. Thurston, Hunter Rouse, W.P. Jones, E.C. Bullard, H.F. Nordström, Hilola Geiring, A. Donald Hay, J.C. Hunsaker, Stefano Teofilato, H. Wjker, W. Truitt, A.T. Ippen, J. Kravtchenko, Garrett Birkhoff, C. Heinz, Einar Hogner, L. Tichvinsky, S. Bergman, E. Leitone, J. Kampé de Fériet, R. Vichinevsky, L.J. Hopper, B. Korvin-Kroukovsky, L.M. Milne-Thomson, E.V. Laitone, R.W. Truitt, S.J. Kline, H. Poncin. Basil Demtchenko is preparing a special volume containing articles written by his colleagues to mark the 50th anniversary of D. P. Riabouchinsky’s scientific career. He maintains active correspondence on various organizational matters, primarily the preparation of this volume, for which the invited researchers are to submit the texts of their articles. • Letters from various researchers in Europe and the United States, as well as professionals in the aviation industry. Responses to the invitation to participate in the commemorative events organized to mark the 50th anniversary of D. P. Riabouchinsky’s scientific career. Addressed to D. P. Riabouchinsky and V. Demtchenko. Typewritten letters, handwritten letters, envelopes. 1953–1954. In French and English, various formats, as is. Total: 23 pp. (typed), 6 pp. (handwritten). Correspondents include: André Mazon, Henri Villat, C. Walen, H. Schargin, C. Strömer, N.J. Hoff, A. Seguin, F.N. Frenkiel, R. Courant, A. Ghaffari, H. Kraft, A. Boys Gibson, J.E. Reid. • Report on the celebration of Dimitri Riabouchinsky’s 50th anniversary in science on May 8, 1954. Written by Mr. Basil Demtchenko, secretary of the Organizing Committee. Brochure, in French, 40 pp., IV, in-8, publisher’s binding, A.B.E. We include: Academy of Sciences. Obituaries of members and correspondents. Obituary of Dimitri Riabouchinsky by Henri Villat. In French, 4 pp., in-4. Basil Demtchenko—a French scientist of Russian origin. At the time, he was director of aerodynamic studies at the Zenith Carburetor Company. [ANNIVERSARY OF SCIENTIFIC ACTIVITY] ARCHIVE OF DMITRI RYABUSHINSKY VASILY DEMCHENKO – Autograph • Extensive correspondence of Vasily Demchenko, secretary of the organizing committee for events marking the anniversary of D.P. Ryabushinsky, with various representatives of the scientific community in Europe and the United States. Typewritten letters with signatures, copies of letters, autographed letters, aerograms, and envelopes. 1953–1954. In English and French. Total: 128 pages (typescripts), 13 pages (autographs), various formats, as compiled. Text of one article (6-page brochure). Correspondents include: Henri Villa, A.R. Metral, L. Escand, H. Drayden, A.P. Thurston, Hunter Rouse, W.P. Jones, E.K. Bullard, H.F. Nordström, Hilola Gehring, A. Donald Hay, J.K. Hansaker, Stefano Teofilato, H. Viker, W. Trewitt, A.T. Ippen, J. Kravchenko, Garrett Birkhoff, K. Heinz, Einar Högner, L. Tichwinski, S. Bergman, J. Kampe de Ferrière, R. Wishnevsky, L. J. Hopper, B. Corvin-Krukowski, L. M. Miln-Thomson, E. V. Lighton, R. V. Trewitt, S. J. Klein, H. Ponsin. Vasily Demchenko is preparing a special issue featuring articles by colleagues to mark the 50th anniversary of D.P. Ryabushinsky’s 50th anniversary of scholarly work. He is actively corresponding on various organizational matters, primarily regarding the preparation of the book, for which the invited scholars must p