30 



<.t attempt 

 te ronttruet' a Bathometer 



O, (KUnf Ar bulb of ylta, 



b daft tube fUted with mercury 



up tc Ltnl a. 

 C Fortun of Gtou tube fOled 



with/ diluted, alcohol to Lml /B 

 d frrrtun of take, filled, with. 



Jumper Oil tt> Lcnl y. 

 e Vaaicue tptue. abort Oil 

 f 



\Exterpt Phil. Tranf. 1876.) 



