vet*' Maohim, UteL 



^r--^ 



JioHom \y^7*-cV I » • 



^"o. o/ thermometer Qtrr^ _ _ 



J^rreoted temperature 

 Mr a^S' Surface Drift 

 Tratvl or drM^e 



aOCINDING WIRE. 



ii 



Tlf11N%, 



0 



too 



V-' 



llOO 



I ;m • 



1500 



iQoo. 



igoo 



4000 



1200 



PRCOaC ROPE. 



