core of the double-armor cable. Since the core diameter of 

 a three-quarter -inch cable is approximately one-half inch, 

 there would be ample room for either type of telemetering 

 system. Admittedly, either system involves the use of complex 

 electronic circuitry but, even with relatively wide spacing 

 of the sensors, it does not appear possible to avoid the use 

 of a somewhat sophisticated electronic system. This 

 should not, however, be cause for great concern since far more 

 complex telemetry systems are currently in wide use and im- 

 provements in reliability at decreased cost are being made 

 continually. The development or selection cf a satisfactory 

 telemetering method, therefore, should not be a significant 

 obstacle in the development of the proposed measuring system. 



54 



