THE CENTER FOR RESEARCH AND OCEANOGRAPHIC STUDIES 



The objectives of the Center are to unite research personnel and 

 means for solution of problems in geology of the oceans and its applica- 

 tions to economic and technical problems (exploration and prospecting 

 of the continental shelf ^ shore protection, improvement and maintenance 

 of navigable channels and estuaries, land reclamation, utilization of 

 marine sediments, etc)o The center provides facilities for practical 

 training, specialized marine laboratory studies, planning and execution 

 of oceanic research, etc as well as collaboration with various marine 

 services o 



Required financing is furnished from public funds and private sub- 

 scrip tion. 



Recruitment of young research workers is one of the most important 

 problems facing the Center and will be the immediate major field of 

 activity of the adminis tration o 



RECORDING IvIANOMETER FOR SUfflARINE PRESSURE 



Note: This manometer was developed at the National 

 Hydraulic Laboratory at Chatou, and is the first 

 such instrument developed in France » It will be in- 

 stalled at Mont Sto Michel in connection with a pro- 

 ject for the development of electric power from the 

 tides, and at Tamatave^ 



The device (see Figure 2) consists of dual chambers connected by 

 a capillary, and an electric differential manometer composed of a metal 

 diaphragm to which strain gauges are attached o Variations in resistance 

 of the strain gauges are measured by a Wheatstone bridge circuit. The 

 system is sensitive to pressure differences of the order of l/lOOO of 

 the maximum pressure differential of the manometer « An armored cable 

 of the submarine telegraph type connects the pressure element to a shore- 

 based recorderi maximum cable length is of the order of 7,000 feeto 



U 



