FOREWORD 



After a lapse of twenty-four years, it was surprisingly easy and 

 pleasant to readjust for a month to a daily schedule of work in a mezzanine 

 office at the David W. Taylor Naval Ship Research and Development Center. 

 I found Ship Hydrodynamics to be alive and well, its problems being vigor- 

 ously attacked by a dedicated and talented staff, as in the "old days." 



The adjustment was probably equally easy and pleasant for another 

 "alumnus" and David Taylor Lecturer, John Wehausen. It is remarkable that 

 so many of the alumni have stayed in the field of Ship Hydrodynamics, an 

 indication of the challenging nature and attractiveness of the subject. 



To all who visited me, to consult, gripe, reminisce or simply to 

 educate me, who extended generous hospitality in accordance with the 

 fortune-cookie admonition, "Take time to play in order to have a long 

 life," who invited me and arranged that day-to-day living would be con- 

 venient and comfortable for my wife and myself, in other words, to all 

 who helped disprove the old adage that "one cannot go home," our deepest 

 appreciation. 



