1 06 Vegetable Stattcks. 



of which continually paffed off, and were 

 fucceeded by others, as at the tranfverfe cuts 

 in the Experiments, of this chapter. And as 

 there, fo in thefe, the. quantity of air-bub- 

 I bles decreafed every day, fo as at laft to have 

 very few: The part i immerfed in the wa- 

 ter, being become fo fatarate therewith, as 

 to leave no room for air to pafs. 



After 20 days I picked the minium out 

 . of the tube, and. found the water had rifen 

 3 feet 7 inches, and would no doubt have 

 rifen higher, if it had not been clogged 

 by the mercury in the gage z. For which 

 reafon the moifture rofe but 20 inches in 

 the allies, where it would other wife hav» 

 rifen 30 or 40 inches. 



And as Sir Ifaac Newton (in his Op- 

 ticks, query 31.) obferves, "The water rifes 

 <c up to this height, by the action only of 

 " thofe particles of the ames which are up- 

 " on the furface of the elevated water ; the 

 " particles which are within the water, at- 

 " trading or repelling it as much down* 

 ." wards as upwards ; and therefore the ac- 

 cc tion of the particles is very ftrong : But 

 cc the particles of the afhes being not fo 

 " denfe and clofe together as thofe of glafs, 

 ". their adion .is not fo ftrong as that of 



" "-lafs 



