38 



Copies 



1 Editor, Bulletin of the British Hydromechanics Research Association, Netteswell 



Road, Harlow, Essex, England 



1 Head, Aerodynamics Division, National Physical Laboratory, Teddington, Mid- 



dlesex, England 



1 Office of Scientific Attach^ of Netherlands Embassy, 1470 Euclid Street, N.W. 



Washington, B.C. 



1 Canadian National Research Establishment, Halifax, Nova Scotia, Canada 



1 Annament Research Establishment, Fort Halstead, Hants, England 



