\i Vegetable Staticks. 



Dr. Keill y by eftimating the •quantities of 

 the fevcral evacuations of his body, found 

 that he eat and drank every 24 hours, 4 

 pounds 10 ounces. 



The Sun-flower 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 17 times more frefri 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 frefh liquor, which en- 

 ters a man's veins; and an equal quantity 

 paffes off every 24 hours. Then it will be 

 found, that 17 times more new fluid enters 

 the fap-veffels of the plant, and paffes off in 

 24 hours, than there enters the veins of a 

 man, and paffes off in the fame time. 



And fince, compared bulk for bulk, the 

 plant perfpires feventeen times more than 

 the man, it was therefore very neceffary, by 

 giving it an extenfive furface, to make a large 

 provifion for a plentiful perfpiration in the 

 plant, which has no other way of dis- 

 charging fuperfluities ; whereas there is pro- 

 vifion made in man 3 to carry off above 



half 



