Pickwell 



14. Davies. I. E. , Barham, E. G. and Pickwell, G. V., "Bio- 

 Acoustics," p. 47-52 in NEL Deep Submergence Log No. 3, February 

 1967 ' ■ 



15. Adams, R. L. , "Bio-Acoustic Scattering Measurements, " 

 p. 53-56 in NEL Deep Submergence Log No. 3, February 1967 



16. National Defense Research Committee (NDRC), Division 6, 

 Summary Technical Report, v. 8, Physics of Sound in the Sea, L. 

 Spitzer, Jr., ed. , Part IV, "Acoustic Properties of Wakes, 



p. 462, 1946 



17. Andreyeva, I. B. and Chindonova, Y. G. , "On the Nature of 

 Sound-Scattering Layers, " Qkeanologiya, v. 4, p. 112-124, 1964 



18. Lebedeva, L. P., "Measurement of the Dynamic Complex Shear 

 Modulus of Animal Tissues, " Soviet Physics - Acoustics, v. 11, 



p. 163-165, 1965 



19. Strasberg, M. , "The Pulsation Frequency of Nonspherical Gas 

 Bubbles in Liquids, " Journal of the Acoustical Society of America, 

 V. 25, p. 536-537, 1953 



20. Jacobs, W. , "Beobachtungen iiber das Schweben der Siphono- 

 phoren, " Zeitschrift fur Vergleichende Physiologie, v. 24, p. 583- 

 601, 1937 



389 



