7", SERIAL TEMPERATURES ' 



depth* 



/ 

 25 



50 



100 



soo 



:«hj 

 400 

 500 

 GOO 



7on 

 m 



TlMl'. 



7f,r 



7JTo 



Mi, mi nil ]L 



r?,/ 



1000 



•; 



te% at'. 



COIL 



- ■ V 



-7- 



REMAEKS 



7; 



.3 



