[ 349 ] 



RESULTS {OF EXPERIMENTS ON RESISTANCE 

 OF SOLUTIONS, ARTS. 616646} 



{From MS. N. 19. See Table of Contents at the beginning of this volume.} 



Pump- water is 4Jh 



684] Resistance of Salt in 1000 of rain water 9 - times less than that 



Sea water 100 I 



of rain water*. 



685] A shock is diminished very nearly the same, but if anything rather 

 more, by passing through 9 tubes, 37 inches of which hold 3373 grains of $, 

 than through one tube, 37 inches of which hold 3480 grains of f. 



686] A shock is as much diminished in passing through 6-8 inches of a tube, 

 37 inches of which hold 567 grains, as through 44^ of one 37 inches of which 

 hold 3480. So that resistance should seem as 1-03 power of velocity*. 



687] If resistance is as -! j? power of velocity, the resistance of 



times less than that of saturated solution of sea salts. 

 (607000 



688] Resistance of sat. sol. S. S. in 99 of distilled water is 39 times greater 

 than that of the sat. sol. 



Resistance of distilled water is 18 times greater than that of sat. sol. in 

 99 of distilled water ||. 



689^] Experiments in 1776 and 1777. 



No. of Conducts times T , Electro- 



Exp. better than meter 



1 Sat. sol. 8-6 salt in 69 14 & 15 4 



2 8-94 22 & 23 rj 



3 9-61 14 & 15 3 New solutions. 



-< 5 &I i D Ja 



iron wire is 



o batery 

 7 10-31 5 & 17 



10 9-02 22 & 23 I 



9 7-79 salt in 29 diluted 22 & 23 i 



with ij of water 

 supp. z\. 



* [Arts. 398, 524.] f [Arts. 574, 575, &c.] J [Arts. 575, 629.] 



[Arts. 398, 576, and Note 32.] || [Art. 577.] 



K [Arts. 617-623.] 



