i % Vegetable Staticks. 
Dr. Keill, by eftimating the quantities of 
the feveral evacuations of his body, found 
that he eat and drank, every 24 hours, 4 
pounds 10 ounces. 
The Sunflower imbibed and perfpired in 
the fame time 22 ounces, fo the man’s food, 
to that of the plant, is as 74 ounces to 22 
ounces, or as 7 : 2. 
But compared bulk for bulk, the plant im- 
bibes 1 7 times more frefh food than the man : 
For deducing 5 ounces, which Dr .Keill al- 
lows for the faces alvi, there will remain 4 
pounds 5 ounces of frefti liquor, which en- 
ters a man’s veins 5 and an equal quantity 
pafies off every 24 hours. Then it will be 
found, that 17 times more new fluid enters 
the fap veflels of the plant, and pafles off in 
24 hours, than there enters the veins of a 
man, and pafles off in the fame time. 
And fince, compared bulk for bulk, the 
plant perfpires feventeen times more than 
the man, it was therefore very neceflary, by 
giving it an extenfive furface, to make a large 
provifion for a plentiful perfpiration in the 
plant, which has no other way of dif- 
charging fuperfluitiesj whereas there is pro- 
vifion made m man, to carry off above 
half 
