R-4 



III-34 Parker, J. G., Reflection of Plane Sound Waves from a Sinusoidal Sur- 



face, J. Acoust. Soc. Am., v. 29 (1957) no. 3, pp 377-380. 



III-35 Physics of Sound in the Sea (Div. 6, v. 8, NDRC Summary Technical 



Reports), Part IV, "Acoustic Properties of Wakes," Research Analysis 

 Group, Committee on Undersea Warfare, National Research Council . 



III-36 Plesset, M. S. and Hsieh, D. Y., Theory of Gas Bubble Dynamics in 



Oscillating Pressure Fields, The Physics of Fluids, v. 3 (1960) no. 6, 

 pp 882-892. 



III-37 Silberman, E., Sound Velocity and Attenuation in Bubbly Mixtures 



Measured in Standing Wave Tubes , J. Acoust. Soc. Am., v. 29 (1957) 

 no. 8, pp 925-933. 



III-38 Spitzer, L., Jr., Acoustic Properties of Gas Bubbles in a Liquid, 



NDRC Report No. 6. 1-Sr 20-918, July 15, 1943. 



III-39 Univ. Calif. Div, War Research, Volume Reverberation: Scattering 



and Attenuation vs. Frequency , Rept. U50, pp 1-13 (1943); Stratifica- 

 tion of Sound Scatterers in the Ocean , Rept. M397, pp 1-13 (1946); 

 Forward Scattering From the Deep Scattering Layer , Rept. M445, 

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111-40 Urick, R. J. and Pryce, A. W= , A Summary of Underwater Acoustic 



Data, Part IV , Reverberation, Office of Naval Research, February 

 1954. (Confidential) 



III- 40a Reverberation, An addendum to Part IV of the Summary of Underwater 



Acoustic Data. U. S. Navy Journal of Underwater Acoustics, v. 10 

 (1960) no. 1, pp 23-33. (Confidential) 



III-41 Urick, R. J. and Pryce, A. W. , A Summary of Underwater Acoustic 



Data, Part II, Target Strength , ONR. 



III-41a Target Strength , An addendum to Part II of the Summary of Underwater 



Acoustic Data. U. S. Navy Journal of Underwater Acoustics, v. 10 

 (1960) no. 1, pp 63-74. (Confidential) 



III-42 Urusovskii, I. A., Sound Scattering by a Sinusoidally Uneven Surface 



Characterized by Normal Acoustic Conductivity, Soviet Physics - 

 Acoustics, V. 5 (1960) no. 3, pp 362-369. 



artbur B.littlcjttf. 



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