Schlosser 



ACOUSTICS 



The acoustic program fully utilized instrumentation payload 

 and available space, both within the sphere and that additional pro- 

 vided by the brow ' . Attachments were designed to be readily 

 removable to allow maximum flexibility by interchanging at sea. 

 Fig. 13 is typical of the type of instrumentation used. The water- 

 sample bottles are of the same design and type as in Fig. 11, but 

 are mounted vertically with reversing thermometers. A dive series 

 of three days at sea and at different locations teflected external 

 changes as shown in Fig. 14. The maximum payload was utilized on 

 these dives and, in many instances, the photographic equipments 

 were removed to allow the scientist greater versatility in the instru- 

 mentation system. Data was obtained and recorded by means of a 

 7-channel tape recorder. Fig. 15 shows a typical internal sphere 

 arrangement for the acoustic mission profiles. 



ACKNOWLEDGEMENTS 



The author wishes to express appreciation to Dr. G. H. Curl 

 for his assistance in reviewing this paper, to Mr. W, H. Armstrong 

 for drafting services, and to Mrs. B. L. Hurt for editing. 



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