[ 287 



The bulk of the 

 two airs kept in the 

 veffel of the largeif. 

 diameter occupied in 

 the giafs tube with- 

 out making 1.10" 



That in the 

 glafs of the next 

 in diameter 1 



That in the 

 glafs of the next 

 diameter 1.28^ 



That in the 

 following 1 -35? 



That in the 

 giafs of the 

 fmalleft diame- 

 ter of all 1 . 



] 



r > 



3T3 



And after 

 beingfhook 

 when firft 

 examined 

 in the glafs 

 tube ? i.io|- 



1.22 



1.28 



x-43 



POST- 



