204 Analyfis of the Air. 



Experiment LXXXVIII. 



I filled the (hong Hungary -water Bottle 

 be Fig. 36. near half full of Peafe, and then 

 full of water, pouring in nrft half an inch 

 depth of Mercury; then I fcrewed at b in- 

 to the bottle the long (lender tube a z , 

 which reached down to the bottom of the 

 bottle ; the water was in two or three days all 

 imbibed by the Peafe, and they thereby much 

 dilated \ the Mercury was alfo forced up the 

 {lender giafs tube near 80 inches high 5 in 

 which ftate the new generated Air in the 

 bottle was compreiTed with a force equal 

 to more than two Atmofpheres and an half; 

 if the bottle and tube were fwung too and 

 fro, the Mercury would make long vibra- 

 tions in the tube between z, and b 3 which 

 proves the great elafticity of the compreiTed 

 |ii in the bottle. 



Experiment LXXXIX. 



I found the like elaftick force by the fol- 

 lowing Experiment, viz. I provided a ftrong 

 iron pot a be d fig. 37. which was 2 andf 



inches 



