EXTENSION OF THE TELEPHONE SYSTEM TO SHIPS 157 



A field experimental station at Cliffwood, New Jersey. 



Two ship installations, on the S. S. Gloucester and the S. S. Ontario. 



The vessels operated between Boston and Philadelphia or Baltimore 



Fig. 9 



and took any of several courses, two representative ones of which 

 are as plotted in the figure. 



Let us now consider this plant from the communication stand- 

 point and look into its characteristics, first as an electric transmission 

 system, and then as a message handling facility. 



