Of Vegetation 



t*9 



pcnd on this Experiment; but thought it 

 proper to mention it, as well defcrving to 

 be repeated with greater accuracy, both with 

 Mint, and other proper plants, by noting the 

 temperature of the air on a Thermometer, 

 hanging near the receivers, and obferving 

 after fome time, whether the water a a be 

 rifen, notwithstanding the air be no cooler 

 than when the Mint was firfr placed under 

 the glafs. And for greater certainty, it will 

 be advifeable to fufpend in the fame manner 

 another like receiver with no Mint, but 

 only water in it, up to a a. 





Rl 



Experiment CXXIII. 



In order to find out the manner of the 

 growth of young (hoots, I firft prepared the 

 following inftrument, vusi I took a fmall 

 flick a, ( Fig. 40. ) and at a quarter of an 

 inch diitance from each other, I run the 

 points of five pins, 1, 2, 3, 4, 5, thro' the 

 ftick, fo far as to ftand \ of an inch from the 

 ftick, then bending down the great ends of 

 the pins, I bound them all faft with waxed 

 thread 5 I provided alfo fome red lead mixed 

 with oil. 



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