Loss of charge by spreading 241 



Sat. Oct. 17 [1772]. The last varnished plates being dried before fire. 

 Th. 65. N. 21. C. - 7. 



I st lac and vermil. closed in 2" or 3", did not sep. in i'. 



2 D closed rather sooner. 



Transparent closed and sep. again in about 4". 



Tu. Oct. 19 [1773*]. The varnished glasses were baked over stove, the heat 

 being kept for 2 hours at about 170. 



Wed. Oct. 20 [1773*]. Th. 64. N. 22. C. - 5. 

 Lac & verm, closed in about 15". 

 Old lac & verm. D. 

 Transparent in i or 2". 



D rubbed with cloth, closed and sep. again in i or 2". 

 On Wednesday, the varnished plates were baked for above 2 hours, the 

 heat the greatest part of the time about 210, but part of the time the rose 

 a little way into the ball. I suppose must be at least 235 or 240. 



Fr. . Th. 60. N. 22. C. - 5. 



Transparent closed and sep. again immed. 



Last lac & verm, closed & sep. again almost immed. 



I st D closed and sep. again in about 2". 



497] Glasses for exper. on spreading of elect. 



9 plates of English glass & 8 of Nuremberg coated with plates of same size. 



Sun. Oct. 24 [1773*]. Th. 63. Comm. 6. N. 21$. 

 Closing of corks. 



E. 9 closed in about 2". 



8 rather sooner. 



7 DO. 



6 DO. 



5 D 4, 3, 2, i D i did not sep. in i'. 



N. 8 closed and sep. again in less than 2" but did not sep. much. 



7 closed in i or 2" but did not sep. again soon. 



6 closed presently and sep. again more than 8. 



5, 4, 3, 2, i D but seemed to sep. at first, to sep. more before it 

 began to close, it was pos. after closing. 



Sun. & Mon. N i, 2, 3, 4 & 8 were baked with heat from 130 to 200. The 

 tinfoil of the lowest plate was blistered. 



Sun. Th. 62. Com. - 15. N. 18. 



E 2, 3, 4, 5 closed in about 2", 2 and 3 sep. again in 30 or 4(0]. E i closed 

 not quite so fast. 



E 9 not baked closed in about 7", 7 & 6 in about 4", & 8 in about 3". 



The 5 baked Nuremberg immediately separated wide, some without closing 

 first, others with. 



* [Probably 1772. See note to Art. 502.] 



c. p. i. 16 



