Copies 



2 Director, Experimental Naval Tank, Department of Naval Architecture 

 and Marine Engineering, University of Michigan, Ann Arbor, Mich. 



2 Dr. V.L Streeter, Illinois Institute of Technology, 3300 Federal 

 Street, Chicago l6, 111. 



2 Head, Department of Naval Architecture and Marine Engineering, 

 Massachusetts Institute of Technology, Cambridge 39. Mass. 



Dr. C.C. Lin, Department of Mathematics, Massachusetts Institute of 



Technology, Cambridge 39. Mass. 

 Director, Applied Physics Laboratory, Johns Hopkins University, 



8621 Georgia Avenue, Silver Spring, Md . 



Prof. W.S. Hamilton, Technical Institute, Northwestern University, 



Evanston, 111. 

 Prof. G. Birkhoff , Harvard University, Cambridge, Mass. 

 Prof. K.E. Schoenherr, School of Engineering, Notre Dame University, 



South Bend, Ind. 

 Prof. W. Spannhake, Armour Research Foundation, 35 West 33rd Street, 



Chicago l6, 111. 

 Dr. W. Pell, Division of Applied Mathematics, Brown University, 



Providence, R.I. 



Dr. J.V. Wehausen, Editor, Mathematical Reviews, Brown University, 

 Providence, R.I. 



Dr. C.H. Lee, U.S. Naval Postgraduate School, Annapolis, Md . 



Prof. C. Yih, Department of Civil Engineering, Colorado A and M 

 College, Fort Collins, Colo. 



Dr. D. Gilbarg, Department of Mathematics, Indiana University, 

 Bloomington, Ind. 



Prof. J. Vennard, Department of Civil Engineering, Stanford Univer- 

 sity, Palo Alto, Calif. 



Dr. G.F. Wislicenus, Mechanical Engineering Department, Johns Hopkins 

 University, Baltimore 18, Md. 



Librarian, American Society of Mechanical Engineers, 29 West 39th St., 

 New York 18, N.Y. 



Librarian, American Society of Civil Engineers, 33 West 39th St., 

 New York l8, N.Y. 



Director, U.S. Waterways Experiment Station, Vicksburg, Miss. 



Dr. G.B. Schubauer . National Bureau of Standards, Washington, D.C. 



Director, Institute for Fluid Dynamics and Applied Mathematics, 



University of Maryland, College Park, Md , 1 for Dr. Weinstein and 

 1 for Prof. R. Myers, Physics Dept . 



Prof. R.A. Dodge, Engineering Mechanics Department, University of 

 Michigan, Ann Arbor, Mich. 



Editor, Applied Mechanics Reviews, Midwest Research Institute, 

 4-04 9 Pennsylvania, Kansas City 2, Mo. 



Editor, Aeronautical Engineering Review, 2 East 64th St., New York 

 21 , N.Y. 



