V MO 



Shtti> or had /y jji^ 

 A% of Therm oinclfir y^^'fi ^ ^ 

 Trfiinl or tlretl^e or ififi^frft 



SOUNDING WIRe. 



dm I 

 KcKJ 



I I 141 



r ■■o.-i 

 • J"" 



i6tx> 

 1401 



Drift. 



OREDQE ROPE. 



