1 1 i Vegetable Statkks. 



notch very dry, becaufe the attraction of the 

 perfpiring leaves was much greater than the 

 force of trufion from the column of water: 

 From thefe Experiments, I fay, it feems 

 evident) that the capillary fap-veifeis, out of 

 the bleeding feafon, have little power to pro- 

 trude fap in any plenty beyond their ori- 

 fices ; but as any fap is evaporated off, they 

 can by their ftrong attraction ( affifted by 

 the genial warmth of the fun) fupply the 

 great quantities of fap drawn off by perfpi- 

 ration. 



Experiment XXXVI. 



April 6th, at 9. a. m. rain the evening be- 

 fore, I cut off a Vine on a Southern afpecl, 

 at #, (Fig. 18.) two feet nine inches from 

 the ground 5 the remaining Hem a b had 

 no lateral branches ; it was | inch diameter -, 

 I fixed on it the mercurial gage ay. At 1 1 

 a. m. the mercury was rifen to z, 15 inches 

 higher than the leg x y being pufhed down 

 at x } by the force of t*he fap which came 

 out of the ftem at a. 



At 4 />.;;/. it was funk an inch in the leg xy. 



April 7th at 8 a. m. rifen very little, a 



fog : at 1 1 a. ?n. 'tis 17 inches high, and the 



fog gone. 



April 



