: 





j 





4 2, ' Vegetable Static hi 



branch */r which I had cut off in a known 

 quantity of water, in the veflelar, (Fig. 5.) 

 the branch in the veflel x imbibed 1 8 oun- 

 ces of water, in 1 * hours day and 1 2 hours 

 night s in which time only 6 ounces of wa- 

 ter had pafled thro' the ftem c b (Fig. 4.) 

 which had a column of water 7 feet high, 

 preffing upon it all the time. 



This again mews the great power of per- 

 fpiration ; to draw three times more water, 

 in the fame time , thro' the long {lender 

 parts of the branch r (Fig. 5.) than was 

 prefted thro' a larger ftem c b (Fig. 4.) of the 

 fame branch 3 but 1 3 inches long with 7 

 feetpreiTure ofwateruponit, in the tube a i;. 

 > I tryed in the fame manner another ap- 

 ple-branch, which in 8 hours day imbibed 

 20 ounces, while only 8 ounces palled thro' 

 the ftem cb, (Fig. 4.) which had the column 

 of water on it. 



The fame I tried with a quince branch, 

 which in 4 hours day imbibed 2 ounces -|- 



while but f ounce paffed thro' the ftem 

 cb (Fig. 4.) which had 9 feet weight of wa- 

 ter preffing on it. 



Note, All thefc (under this Experiment 



u.) were made the firft day, before the 



ftem 



1 



