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which oozes out of the leaves, and 

 that thus lefs air is gathered at the 

 top of the bottle. This conjecture 

 -will perhaps find more ground from, 

 the following experiment. I placed 

 forne leaves of a vine in water, 

 which I had, for this experiment, 

 impregnated with fixed air : they 

 were fcarce under the .furface of 

 this water, but they were all covered 

 with air bubbles ; which feems to 

 me to depend partly upon this water 

 refufing to abforbe any air ifluing 

 from the leaves, becaufe it was ak 

 ready overcharged w 7 ith air itielf, 

 It is true that anv other bodv, 

 plunged in water impregnated with 

 fixed air, will alfo become covered 

 with air bubbles ; but thefe bubbles 

 do not appear fo foon, or increafe fa 

 rapidly, as thofe of the living leaves, 

 So that it feems ? that the bubbles of 



the 



