40. LaFond, E. C. , "How it Works - The NEL Oceano- 

 graphic Tower, U. S. Naval Institute. Proceedings, v. 85, 

 p. 146-148, November 1959 



41. LaFond, E. C. , "Oceanographic Tower," Bureau of 

 Ships Journal , v. 9, p. 21-22, April 1960 



42. Truesdale, G. A. and others, "The Solubility of 

 Oxygen in Pure Water and Sea Water, " Journal of Applied 

 Chemistry , v. 5, p. 53-62, 1955 



43. Naake, H. J. and others, "Formation of Air Bubbles 

 in Air-Saturated Water at Reduced Pressure and Their 

 Indication by an Acoustical Measuring Procedure, 

 Acustica, v. 8, p. 142-152, 1958 



44. Naake, H. J. and others, "Observation of the Forma- 

 tion and Growth of Bubbles in Water Containing Air, by 

 Optical Methods, " Acustica , v. 8, p. 193-196, 1958 



45. Hsieh, D. -Y. and Plesset, M. S. , "Theory of Recti- - 

 fied Diffusion of Mass into Gas Bubbles, Acoustical 

 Society of America. Journal , v. 33, p. 2 06-215, February 

 1961 



46. Strasberg, M., "Onset of Ultrasonic Cavitation in Tap 

 Water, " Acoustical Society of America. Journal, v. 31, 



p. 163-176, February 1959 



47. National Research Council. Committee on Aviation 

 Medicine. Subcommittee on Decompression Sickness, 

 Decompression Sickness; Caisson Sickness, Diver's and 

 Flier's Bends, and Related Syndromes, Saunders, 1951 



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