Experiments Upon Vegetables: Discovering Their Great Power of Purifying the ...
Experiments Upon Vegetables: Discovering Their Great Power of Purifying the ...
Jan Ingenhousz
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Therefore it feems to be not quite improbable, that water which has been boiled or diftilled is very apt to abforb^ itfelf the air G 3 which ^%S * ^"^ "^ Digitized by Google [ 86 ]' whicli oozes out of the leaves^ an4 that thus lefs s^ir is gathered ut th top of the bottle. TWs cQnjetfture will perhaps find more ground fri9m the fpUpwing expeptnent. I placed fome leaves of a vine in watetj^ which I had, for this experimentj^ impregnated with fiied air : they were fcarce under the furface of thi...s water, but they were all covered with air bubbles ; which feems to me to depend partly upon this wate;' refafing to abforbe any air ifluing from, the leaves, becaufe it was al-s re?idy. overcharged with air itfelf, It is true . that ^ny other body, plunged in water impregnated with ii^^ed air, wiU aMb become covered with air bubbles; but thefe bubbles, do not appear fo foon, w iircreafefo rapidly, as thofe 6f ^he liviugleaves, Sojhat it feerfis, th'^t the bubbles of Digitizaci by Go^le [ 87 ] the leaves increaf^ fafter becaufe tbey are puftied out of the leaves by 3 yit^ rnotion m the leaf.
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