4 1 Vegetable Statuks. 



branch d r, which I had cut off in a known 

 quantity of water, in the veffel x (Fig. 5.). 

 The branch in the veffel x imbibed 18 ounces 

 of water in 18 hours day and 12 hours night; 

 in which time only 6 ounces of water had 

 paffed thro' the ftem/ b, (Fig. 4.) which had 

 a column of water 7 feet high, preffing upon 

 it all the time. 



This again fhews the great power of per- 

 fpiration; to draw thrice as much water, 

 in the fame time, through the long flender 

 parts of the branch r, (Fig. 5.) as was pre/Ted 

 thro' a larger ftem cb (Fig. 4.) of the fame 

 branch; but 13 inches long, with 7 feet 

 preffure of water upon it, in the tube a b. 



I tried in the fame manner another Ap- 

 ple-branch, which in 8 hours day imbibed 

 20 ounces, while only 8 ounces paffed thro' 

 the ftem c b, (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 -f-i, 

 while but a ounce paffed thro' the ftem cb 

 (Fig. 4.) which had 9 feet weight of water 

 preffing on it. 



Note> All thele (under this experiment 

 11,) were made the firft day, before the 



ftem 



