JiaHnm ImtperfUare 

 J^To. of ihcrrruomet&r 

 Corrected temp'tralttre 



i.wl or d 



\^ Oar. 



t^faofi Drift 



SOUNDING WIRE. 



WW. 



t > 



UJ'. 



/ 



lOCXJ' 



lloa 



r.*uo 



I r;U"> 



PREPGE ROPE, 



DOWN. 



VP. 



I 



