231 



Seismograph, 79 

 Self-contained diving units, 



in biological studies, 44, 50 



in ocean floor studies, 199 

 Servo-systems, 62 

 Shoran, 92 



Sirens, underwater, 108 

 SKIJUMP, project, 90 

 Snappers -- see Ocean Floor, ex- 

 ploration of 



SOFAR, 9, 65. 80, 82, 111 

 Sonagraph, 106 



Sonic devices in biological studies, 

 43 



Sonic radio-link spar buoy wave 

 height meter, 143 

 Sound propagation predicted con- 

 ditions, 120 



Sound transmission studies -- see 

 Acoustic Instrumentation 

 SPENCER F. BAIRD, 128 

 Spectrophotometers, 184 

 Spherical cable clamp, 39 

 Steady and transient states in 

 oceanic circulation, 14 

 Stereophotographs, 21 

 Submarines, in sea-ice studies, 88 

 Sub-surface current recorders, 140 

 SUITCASE, 105 

 SUITLAND, 129 



Deck, 131 



General characteristics, 129 



Ice-breaking ability, 132 



Propulsion, 132 



Rigging, 129 



Sounding well, 131 



Superstructure, 131 



Winches, 131 

 Surface vessels, in sea-ice studies, 

 86 



Suspended underwater pressure 

 recorders, 143 



Telecorder, 118 



Telemetering, 17, 20, 28, 79, 155 

 Telereader, 118 

 Television, underwater, 44 

 Temperature-Measuring Instru- 

 ments, 55-69 



in Air-Sea Boundary Processes, 



225 



Design of, 62 



Errors in temperature data, 60 



Needed temperature recorders, 



63 



Temperature Measuring Instru- 

 ments -- 



Older instruments, 55 

 bathythermograph, 56 

 bucket and thermometer, 55 

 reversing thermometers, 56 

 water intake thermometers, 

 56 



16-channel temperature re- 

 corder, 65 



Temperature- profile -record- 

 er (TPR), 65 



Thermal measuring problems, 



58 



Thermal sensitive devices, 



62 



Under development, 63 

 Texas A. and M. , 67, 171, 177 

 Thermal element, dynamic size 

 of, 61 



Thermal measuring problems, 58 

 Thermal response factors, 66 

 Thermal sensitive devices, 62 

 Thermistor bead, 216 

 Thermistor rod, 216 

 Thermitow, 63 

 Thermocouple, 216 



Psychrometer, 216 

 without wick, 216 

 Thermometric depths, accuracy 

 of, 68 



Tide gauge, 14, 25, 80, 170 

 TNT, 108 



Tonolli plankton bar, 49 

 Towed gravimeter, 81 

 Trans- Pacific expedition, 43 

 Trawl 



Bottom, 207 



Isaacs-Kidd midwater, 41 



Midwater, 50 



Otter, 41, 50 

 Tripartite wave recorders, 141 

 Tsunami recorders, 80 

 Turbidity current instrumentation, 

 23 



Underway samplers -- see Ocean 



Floor, exploration of 



U.S. Coast and Geodetic Survey, 



93, 110, 197 



U.S. Coast Guard, 132, 151, 168 



U.S. Naval Ordnance Laboratory, 



150 



U.S. Naval Station, 149 



