2 4 3 Analyjis of the Air. 



changed from an elaftick, repulfive, to a 

 ftrongly attracting ftate, may eafily be at- 

 tracted thro' the thin partition of the veficles, 

 by the fulphureous particles which abound in 

 the blood. 



And nature feems to make ufe of the like 

 artifices in vegetables, where we find that 

 air is freely drawn in; not only with the 

 principal fund of nourishment at the root, 

 but alfo thro' feveral parts of the body of 

 the vegetable above ground ; which air was 

 feen to afcend in an elaftick ftate moft freely 

 and vifibly through the larger trachea of the 

 Vine; and is thence doublefs carried with 

 the fap into minuter verTels, where being in- 

 timately united with the fulphureous, faline, 

 and other particles, it forms the nutritive 

 ductile matter, out of which all the parts of 

 vegetables do grow. 



Experiment CXI. 



It is plain from thefe effects of the fumes 

 of burning Brim/lone, lighted Candle, and 

 the breath of Animals, on the eiafticity of 

 the air, that its eiafticity in the veficles of 

 the lungs muft be continually decreafing, by 

 reafon of the vapours it is there loaded with ; 

 fo that thofe veficles would in a little time 



fubfide 



