160 



ON THE VEGETATION OF PLANTS, 



following table fhews the effect of the leaves of plants 



Experiments in The 



ar lg ' gathered promifcuoufl y, expofed five hours to the light of 



the fun, in forty ounce meafures of atmofpherical air, at a 

 temperature of 75° of Fahrenheit. 



Id the dirk. The following table will (hew the effects produced in one 

 night, on forty ounce meafures of atmofpheric air of the 

 purity of 100, by a fmall handful of leaves gathered promif- 

 cuoufl y from a variety of plants. 



According to fome philofophers, carbonic acid gas is fecreted 

 by certain vegetables in the night ; but as the quantity of this 

 air obtained is always in proportion to the decayed parts of 



plants, 



