312 On Resistance to Electric Current 



Exp. 3. A new saturated solution and solution in 69 of water made and tried 

 in tubes 15 and 14. [R. = 390000.] 



3-5 40-7 just sensibly greater. Electrom. = 3. 

 3- 1 very plain. Th. = 57. 



5-5 sensibly less. 



5-0 just sensibly less. 



Therefore new saturated solution conducts 9-61 times better than new 

 solution in 69. 



Exp. 4. Salt in 69 of water compared with salt in 999 of water in tube 22 

 and 23. 







[R. = 1230000.] 

 23 22 Electrometer = if. 



3-1 41-1 sensibly greater. "* = 57- 



3-5 scarce sens. 



4-3 scarce sensibly less. 



4-9 just sensib. 



5-3 very sensib. 



Resist. 4-1 in tube 23 supposed equal to 41-1 in 22. 



Therefore salt in 69 conducts 9-57 times better than salt in 999. 



Exp. 5. Salt in 999 compared with distilled water in tubes 12 and 20. 



[R. = 462000.] 



20 12 Electrom. = 3. 



Th. = 58. 



78 43-5 sensib. greater. 

 1-2 scarce sensib. less. 



1-4 diff. more sensib. than in i" trial. 



1-05 supposed right. 



Therefore salt in 999 conducts 36-3 times better than distilled water. 

 The distilled water changed for rain water. 



1-9 

 3-3 

 2-55 



sensib. greater. Electrom. = 3. Th. = 58. 

 less, rather more sensib. than former, 

 supposed right. 



Therefore rain water conducts 2-4 times better than distilled water, or 

 15-2 times worse than salt in 999. 



The rain water changed for distilled water with ^fo^ of salt in it. 



5-3 

 2-7 



sensib. less. 



about as much greater. 



Therefore salt in 20,000 of distilled water conducts [3-67] times better than 

 distilled water, or 9-92 worse than salt in 999. 



