Ma-tthtya* 



Turns for. ' 



Bottom 



ftaltom temperature 

 .\ o of Thermometer 



i nrrrrh if tejnpi WttU "' 

 .///• Surjnrr 



Depth 



Cor. 



thift. 



SOUNDING WIRE. 



now n, 



iiH) 



;*<k> 



500 

 400 



5°° 



HttQ 



ni >ri 

 toon 

 1 1... 



I.»00 



1 1> «j 



> 7« » * 

 iHuu 



JIUO 



1 iq • 



DREDGE ROPE. 



im.ws. Df 



