Jfo, <z* / /J Date / 



Machine Iteel, 

 Tunu Cor. + Depth b 



S'hot or /cad , . 



JtoUom 



Unit,,),) !, inprnUttre I 

 , VVi, o/ the nmm i Ht.tr * '■ Cor. 

 Corrected temperature 



Air 6 ^ ^r;JL ^ 6 ? 



Drift 



SOUNDING WIRE. 



UK 



• Ml 



I IJKNSJ 



UXJ 



3co 

 4uo 



5no 



7^0 

 900 



1< « K) 

 I (<•»■ 



1700 



1 



l.l'Al 



l£gg 



Hon 



iY DOWN. 



Of, 



















