Conductance of straw electrometers 277 



Fair ) 2" 



Rl' ht H ( straw c ' ose d in about when resting on straw, and about 5" 



or 7" when resting on cork ball. 



In about ij hours after they were tried again without any alteration having 

 been made. 



When heavy at { ^ , light at 



, > closed ! f on straw { on ball, 

 blighted] (2j (.10 



The light straw N i was soaked in salt paper at night for 3^ hours. 



Wed. Jan. 27. Th. 57. N. 23. 



When heavy sep. to 15, light at 14, but increased after a time to near 15. 

 As it was suspected that this increase might be owing to the air being electrified, 

 I tried and found the air to be much electrified in all parts of the room. 



( straw , 2" or 3" . 



N i resting on < , closed in 



(ball 90 



straw 20" 



N 2 on , .. closed in , 



ball very slow. 



The ball of N i was then moistened with salt water. 



Heavy sep. to 15, light to 13, but increased to near 14. 



In order to avoid in some measure the inconvenience from electrifying the 

 air, Richard turned the globe, by which means the electricity was not made so 

 strong. 



heavy to , light to 



10 10 



N i closed in about 4" whether resting on ball or straw. 



N 2 was soaked in salt water for 2\ hours till 3 in afternoon, about 5 or 6 

 it was tried. 



heavy to , light to , I st time, for several times after to 14. 

 10 



Wed. Feb. 3. Th. 46^ N. 12. 



As it was found the preceding day that the straws conducted ill, they were 

 kept about 3 or 4 hours in the morning in salted paper, at about 3 they were 

 taken out of the paper and hung up to dry. In the afternoon they were tried, 

 a screen being placed to keep them from the fire. 



