238 "Journal of Experiments, Feb. 5, 1772 



491] Trials of the same kind as those in [Art. 487]. 



Large trial plate for the experiments of this page balls closed in 13" 



Small do. 

 Trial plate A 

 B 



E of Nairne 

 F 

 G 

 D 



Double plate B 

 A 



M of Nairne 

 I 



K 

 L 



10 or 15 

 15 

 15 



20 



20 



20 



5 



5 



7 



20 

 20 



35 

 25 



492] Wed. Feb. 5 [1772]. Th. 49. S. H. 17^. C. H. 4$. 



Comparison of I, K, and L together, with A, B and C by means of the trial 

 plates E and F, and of A, B and C together, with H by means of the two 

 crown glass trial plates*. 



sep. about ^ pos. Much the same if resting at 

 bottom 2 or 3". 







sep. i diam. neg. Much the same if kept at bottom 



2 or 3". Kept increasing for a short time, 

 do. 

 do. 



the same, only rather less if resting at bottom 2 or 3". 

 the same as before, 

 the same as before. 



* [Art. 318.] 



