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SUBMABINE CABLE LAYING AND KEPAIKING. 



Compound. This contains, amongst other constituents, mineral 

 pitch and tar, and the proportions and consistence of this pre- 

 servatiye used in different portions of submarine cable cover- 



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ings vary considerably according to the particular requirements. 

 The pickling mixture is in a boiling condition and the process, 

 besides properly compounding the wire, has also the effect of 



