[ 214 ] 



50. 1 placed over-night in a room 

 about an equal quantity of branches 

 Of a lime-tree, walnut-tree, a vine, 

 an oak, and a willow, each in a 

 different jar holding a gallon, with- 

 out water, putting only fome water 

 in the plate upon which the jars 

 were inverted, to keep the branches 

 alive ; the jars were left without 

 being covered, and examined be-r 

 tween eight and nine in the morn- 

 ing ; the air of all was tried by 

 putting one meafure of it with 

 one of nitrous air immediately 

 one after another in the glafs 

 tube. 



The air of the lime-tree occu- 

 pied - - - 1.24 

 the air of the walnut-tree 1.25 



— vine 1*30 



,_ ~_ , oak 1.26 



■ ' ■ .,;. t — willow 1-23 



51. After 



