I ■ '■ 



i '(7li-ijX^ Machine. / Jteel. ^ "*-<■/ 



■Purn/} »i Cor, + . J' Vepa,. '-^ ^ (t* 



sf/}/ 



Air SiLTface 'j'K. , . , 



Tra wl <ic dr ed ge 



— ^uaL vr. l-cad 



Jiotiom temperature 

 J\fo,of thermometer 

 CorrMied icmparthiwre 



Cor. 



■ SOUNDI NG WIRE, 



1/ I ' 



OH. 



TUttNB. 



.|0<} 

 5IXJ 



<A!»t 



8.x. 

 qoo 

 iocx> 



IIOO 



1300 

 uno 



( 0 N I 

 (700 



J Hi.iiji 

 wiouo 



-ju ^ DREDG E ROPE 



