Copies 
Prof. W.S. Hamilton, Dir of Small Ship Model 
Towing Tank, Tech Inst, Northwestern Univ, 
Evanston, Ill. 
Prof. A. Donald Hay, Schl of Engin, Prinzeton, N.J. 
Mr. M.A. Hall, Univ of Minnesota, Minneapolis, Minn. 
Dr. A.T. Ippen, Dir, Hydro Lab, Dept of Civ & 
Sanitary Engin, MIT, Cambridge, Mass. 
Dr. A. Kantrowitz, Cornell Univ, Ithaca, N.Y. 
Or. G.H. Keulegan, Natl Hydraulic Lab, Nat! BuStand 
Prof. B.V. Korvin-Kroukovsky, SIT, Hoboken, N.J. 
Dr. Th. von Karman, 1051-So. Marengo St, 
Pasadena, Calif. 
Dr. C. Kaplan, Langley Aero Lab, Langley Field, Va. 
Mr. C.A. Lee, Supt Fluid Mech Lab, Kimberly-Clark 
Corp, Neenah, Wis. 
Or. C.C. Lin, Dept of Math, MIT, Cambridge, Mass. 
Dr. L. Lees, Aero Engin Dept, Princeton Univ, 
Princeton, N.J. 
Dr. J.H. McMillen, Natl Sci Fdtn, Washington, D.C. 
Prof. J.W. Miles, Univ of Calfornia, Los Angles, 
Calif. 
Dr. Albert May, Aero Div, USNOL 
Dr. George C. Manning, Prof of Nav Arch, MIT, 
Cambridge, Mass. 
Hudson Lab, Dobbs Ferry, New York, N.Y. 
Dr. J.E. Prins, Inst of Engin Res, Wave Res Lab, 
Univ of California, Berkeley, Calif, 
Mr. J.B. Parkinson, Langley Aero Lab, 
Langley Field, Va. 
Dr. W. Pell, Grad Div of App! Math, Brown, 
Univ, Providence, R.I. 
Dr. M.S. Plesset, Hydro Lab, CIT, Pasadena, Calif. 
Dr. H. Rouse, Dir, lowa Inst of Hydraulic Res, 
St Univ of lowa, lowa City, la. 
1 Dr. Landweber 
Dr. J.M. Robertson, Dir of Water Tunnel, ORL, Penn 
State Univ, University Park, Pa. 
Prof. A. Weinstein, Dept of Math, Univ of Maryland, 
College Park, Md. 
Dr. J.V. Wehausen, Exec Editor, Math Reviews, 
Providence, R.I. 
Prof. L.I. Schiff, Dept of Physics, Stanford Univ, Calif. 
Dr. L.G. Straub, Dir, St. Anthony Falls Hydraulic 
Lab, Univ of Minnesota, Minneapolis, Minn. 
Dr. F.B. Seely, Fluid Mech & Hydraulics Lab, 
University of Illinois, Urbana, III. 
Dy. C.R. Soderberg, Dept of Mech Engin, 
MIT, Cambridge, Mass. 
Prof. W. Sears, Grad School of Engin, Cornell Univ, 
Ithaca, N.Y. 
Dr. Stanley Corrsin, Dept of Aero, Johns Hopkins 
Univ, Baltimore, Md. 
Dr. C.A. Truesdell, Dept of Math, Univ of 
Indiana, Bloomington, Ind. 
Copies 
Copies 
Prof. J.K. Vennard, Dir, Hydraulic Lab, 1 
Stanford Univ, Calif. 
Dr. E.V. Laitone, Univ of California, 1 
Berkeley, Calif. 
Or. L. Trilling, MIT, Cambridge, Mass. 
Dr. George K. Morikawa, Inst of Math Sci, 1 
New York Univ, New York, N.Y. 
Prof. J. Kaye, Dept of Mech Engin, MIT, u 
Cambridge, Mass. 
Prof. Francis R. Hama, Inst for Fluid ! 
Dynamics & Appl Math, Univ of Maryland, 
College Park, Md. 1 
Mr. G.R. Hamilton, Navy Sofar Station, 
APO 856, New York, N.Y. 
Dr. E.G. Richardson, King’s College 1 
Newcastle Upon Tyne, England 
Dr. B. Wise, Schl of Engin, Oxford University, 1 
Oxford, England 
Dr. H.W. Lerbs, Dir, Hamburg Model Basin, } 
Hamburg 33, Germany 
Dr. A. Andreoni, Head, Ship Model Basin, 1 
Instituto de Pesquisas Tecnologicas, 
Sao Paulo, Brazil 
Dr. J.F. Allan, Supt, Ship Div, Natl Phys Lab, 1 
Teddington, Middlesex, England 
Dr. J. Ackeret, Inst fur Aerodynamik 1 
Eidgenossiche, Technische Hochschule, 1 
Zurich, Switzerland 
Sr. M. Acevedo y Campoamor, Dir, Canal 1 
de Experienceas Hidrodinamicas, El 
Pardo, Madrid, Spain ' 
Mr. W. Ray Ansell, Minister of Supply, 
Armament Design Estab, Seven Oaks, 
Kent, England 1 
Prof. J.M. Burgers, Laboratorium Voor, Aero- ; 
En Hydro, Nieuwe Laan 76, Delft, The 
Netherlands 
RADM Roger E. Brard, Dir, Bassin d’Essais des 1 
Carenes, 6 Blvd Victor, Paris (XVe) France 
Prof. G.K, Batchelor, Trinity College, 
Cambridge Univ, Cambridge, England 
Prof. 0.J.M. Campos, Jefe de Laboratorio del 
Inst de Maguimas de la Facultad de Ingenieria, 
Montevideo, Uruguay 
Dr. Satish Dhawan, Dept of Aero Engin, Indian 
Inst of Science, Bangalore 3, India 
Dr. J. Dieudonne, Dir, Inst de Recherches de la 
Construction Navale, 1 Blvd Haussmann, 
Paris (9e), France 
Dr. S. Goldstein, Haifa Inst of Tech, Haifa, Israel 
L. Escande, Ingenieur |.E.T., Prof a la Faculte 
des Sci, Dir de |'Ecole Natl Superieure, 
D’Electrotechnique et d’Hydraulique, 4 Blvd 
Requit, Toulouse, France 
Prof. K. Howarth, Dept of Math, Univ of Bristol, 
Bristol, England 
Mr. W.P. Jones, Natl Phys Lab, Aero Div, 
London, England 
Prof. J. Kampe de Feriet, Faculte des Sciences, 
Universite de Lille, Lille (Nord), France 
50 
Prof. J.K. Lunde, Skipsmodelltanken, Tyholt, 
Trondheim, Norway 
Dr. L. Malavard, Office Natl d’Etudes et de 
Recherches Aeronautiques, 25-39 Ave dela 
Div - Le Clerc, Chatillon, Paris, France 
Dr. Hans Edstrand, Dir, Statens Skeppsprovning- 
sanstalt, Goteborg 24, Sweden 
Dr. J. Okaba, Res Inst for App! Mech, Kyushu 
Univ, Hakozaki-machi, Fukuoka-shi, Japan 
Dr. G.N. Patterson, Inst of Aerophysics, Univ of 
Toronto, Toronto 5, Canada 
Gen. Ing. U Pugliese, Pres, Inst Nazionale per 
Studi ed Esperienze di Architettura Navale, 
via della Vasca Navale 89, Rome, Italy 
Prof. L. Rosenhead, Univ of Liverpool, Liverpool, 
England 
Dr. J.H. Preston, Univ Engin Lab, Cambridge 
Univ, Cambridge, England 
Prof. J.L. Synge, Sch of Theo Physics, Natl 
Univ of Ireland, Dublin, Ireland 
Prof. Dr. H. Schlichting, Inst fur Stromungs, 
Technische Hochschule, Braunschweig, 
Germany 
Prof. K. Stewartson, Dept of Math, Univ of 
Bristol, Bristol, England 
Sir R.V. Southwell, 9 Lathburg Road, Oxford, England 
Dr. R. Timman, Nat! Luchtvaartlaboratorium, 
Sloterwayg 145, Amsterdam, The Netherlands 
Dir, Nederlandsch Scheepsbouwkundig Proef- 
station, Haagsteeg 2, Wageningen, The Netherlands 
Dr. Georg P. Weinblum, Universitaet Hamburg, 
Berliner Tor 21, Hamburg, Germany 
Mr. C. Wigley, 6-9 Charterhouse Sq, London EC-1 
England 
Prof. Leon J. Tison, L’Universite de Gand, Rue 
de Rouces 61, Genthougge, Ghent, Belgium 
M. le Directeur H. Villat Inst de Mecanique, 
Universite de Paris, 45, Rue d’Ulf, Paris, France 
Dir, British Shipbldg Res Assn, London, England 
ALUSNA, London, England 
Dir, Model Testing Basin, Natl Res Lab, 
Ottawa, Canada 
BJSM (NS) 
CJS 
NAVY-DPPO PRNC WASH DC 
