Vegetable Stanch. 149 



Experiment XLVII. 



Sept. 9th, at 9 a. m, I cemented an Apple- 

 branch b (Fig. 11.) to the glafs tube ri 

 e z : I put no water in the tube, but fet the 

 end of it in the ciftern of water x. Three 

 hours after I found the water fucked up in 

 the tube many inches to z 5 which (hews, 

 that a confiderable quantity of air was im- 

 bibed by the branch, out of the tube r i ez' 

 And in like manner did the Apricock- 

 branch (Exper. 29.) daily imbibe air. 



Experiment XLVIII. 



I took a cylinder of Birch with the bark 

 on, 16 inches long and % diameter, and ce- 

 mented it faft at z-> (Fig. 32.) to the hole 

 in the top of the air pump receiver p p t 

 fetting the lower end of it in the ciftern 

 of water x 5 the upper end of it at n was 

 well clofed up with melted cement. 



I then drew the air out of the receiver, 

 upon which innumerable air bubbles iffued 

 continually out of the flick into the wa- 

 ter x. I kept the receiver exhaufted all that 

 L 3 day, 



