NOV 2 1 1951 



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RESEARCH DIVISION 

 COLLEGE OF ENGINEERING 

 NEW YORK UNIVERSITY 



DEPARTMENT OF METEOROLOGY 



A SURVEY OF SELECTED SOLUTIONS TO PROBLEMS OF 

 REFRACTION AND DIFFRACTION OF UGHT WAVES AND 

 SOUND WAVES AND THE ANALOGIES OF THESE PROBLEMS 



TO WATER WAVES 





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Prepared for 



BEACH EROSION BOARD 



Corps of Engineers, Department of the Army 



5201 Little Falls Road, N. W. 



Washington 16, D. C. 

 Contract No. W49-055-eng-l 



