Tu.rtui ^^y'^^'^^ci^ 

 Hfi-ot or lead ^ i^- " 



J{ott>oirt> 



,'Y(K of the. 



Corrected tsmperaturr. 

 Air Surfa^ 

 Trawl or dredge 



DHft 



SOUNOIKQ^RE. 



T 



fo 

 So 

 HI 



I -ATI 



'Of 



nt 



TURNr. 



o 



lOO 

 '.•CX> 



300 



400 



5f» 

 600 

 700 

 Hoo 

 yoo 

 1000 



I KX* 



tarn 

 131X) 

 lJiX> 

 1500 



I (•<.»:> 



1 



2100 

 S300 

 2300 

 2400 



& DREDGE ROPE. 



o 



0 

 0 



I 

 / 

 I 

 / 



r- 

 3 



^" 



// 



