INDEX. 



V. 



Vegetables. See Plants. Theory of their effe£l jjpon air, 

 p. 74. — Abforbe air, p. 77. — Principally dephlogsfti- 

 cated and phlogifticated air, p. 78. — Yield dephlo- 

 gifticated air only from their leaves and green ftalks, 

 ezp. 92, 93.— Principally from the under part of the 

 leaves, p. xxxvi. and p. 20.— At what time of the 

 day they begin to yield dephlogifticated air, p. 44. 

 79. — Their natural air is common air, p. 2^. which 

 is changed into fix different kinds of air, according to 

 the different operations it undergoes, p. 1 15. exp. 

 36. 55. — Render common air poifonous in the dark, 

 p. 102. 105. exp. 44. 



Vegetation has nothing to do with the plants yielding de- 

 phlogifticated air, p. 44. 



Vienna. Its plain in want of tree, p. 148. 



Vine. Its air, exp. 4. 122, 123. — Does not much infecl 

 common air at night, exp. 120. — Its remarkable fa- 

 culty of correcting bad air, and of rendering in the 

 day again wholefome the air which was contaminated 

 by it at night, exp. 50. 5 8. -Peculiarity of air- 

 bubbles from the leaves, p. 20. 



Vitriolic acid. Its effect upon iron, p, 120. 



Vufoaria. See Atriplex* 



Water, 



