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SECTION III. 



The manner fn which the dephlogifti- 

 c cited air oozes out of the leaves 

 is different in different plants. 



IT is fomewhat amuiing to ob- 

 ferve the conftant manner in which 

 the deohlo^ifticated air makes its 

 appearance upon the fame kind of 

 leaves j and the furprizing difference 

 which takes place in the leaves of 

 different plants. Some leaves, for in- 

 fiance, form always fmall round bub- 

 bles, as is the cafe with the molt part 

 of leaves ; others form irregular flat 

 bliiters, as do the leaves of the honey- 

 fuckle, caprifolium. Some, and in- 

 deed the greater! part, produce round 

 bubbles on both furfaces; others 

 yield on one furface round bubbles, 

 G on 



