the Department of Engineering, University of California 



under contract to the Beach Erosion Board. The studies 



summarized are grouped under general headings of Model 



Studies, Field Studies, and Wave Recorders and Wave Data. 



II-A "Discussion - A Method for Drawing Orthogonals Seaward from 

 Shore" by Kenneth Kaplan, U. S. Army Engineer District, San 

 Francisco 



Points out that Mr. R. W. Lome, formerly with the San 

 Francisco District, had previously developed a method 

 for solving this problem without the need for special 

 protractors. 



II-A "On the Expansion of Sea Waves Due to the Effect of Wind" 



An abstract of the translation from the German of a paper 

 by Hans Ulrich Roll which appeared in "Deutsche Hydro- 

 graphische Zeitschrift". Wave and wind measurements made 

 in tidal waters of "Neuwerk Shallcws" in the North Sea 

 are compared with theoretical results based on methods of 

 Sverdrup and Munk. Differences are pointed out and dis- 

 cussed. However, the author regards the results of the 

 Neuwerk measurements as a verification of the Sverdrup- 

 Munk theory. 



II-A "The Generation of Wind Waves" 



An abstract of the translation, from the German of a paper 

 by Gerhard Neumann which appeared in "Deutsche Hydro- 

 graphische Zeitschrift". A new treatment of theory of 

 wave generation by wind is presented. Height and length 

 of initial waves generated by incident winds of different 

 velocities for both deep and shallow water are computed 

 and compared. 



"Be^ch Erosion Studies" 



Listing of cooperative studies in progress. 



"^Beach Erosion Literature" 



Contents of the Proceedings of the First Conference on 

 Coastal Engineering are listed. 



62 



