VII- 33. VAN DORN, W. G. A selective-period wave recorder (abstract), 

 Proceedin gs of the First Conference on Coastal En g ineerin g 

 Instruments , Berkele y, California , October 3 1 - No ve mbe r Z, 

 1955 , p. 119, 1956. 



VII- 34. WHITTAKER, C. A. Design changes on the Springer swell 

 recorder. U. S. Navy Mine Defense Laboratory. Report No. 

 95. Panama City, Fla. 24 p. June 1957. 



VII- 35. WHITTENBURY, C. G. A capacitance probe for recording 

 water waves. University of Illinois. Control Systems Labora- 

 tory. Report R-84. Urbana. 19 p. December 1956. 



VII- 36. WIEGEL, R. L. Parallel wire resistance wave meter, Pro- 

 ceedin gs of the First Conference on Coastal Eng ineerin g 

 Instruments , Berkele y, California , October 31-November _2_, 

 1955 , p. 39-43, 1956. 



VII- 22 



