JLlectric resistances of solutions of 'various salts 321 



626] 2-3 of Sal. Amm., 3-2 of Sal. Sylvii, 3-17 of Quadr. nitre, 2-21 of calcined 

 Glauber's salt and 14-10 of calc. S. S. A.* were dissolved in water, the solution 

 of each being 3.10.12, that is, such that the quant, acid in each should be 

 equiv. to that in a solut. salt in 29 of water. 



Jan. 13. Sal. Sylvii in tube 15 compared with salt in 29 in tube 22. 



Electrometer = 2. Th. = 55. 

 [R. = 253000.] 



seemed greater, but doubtful. 



plainly greater. 



seemed less, but doubtful. 



seemed less. 



plainly less. 



right. 



Jan. 14. Sal. amm. tried same way. 



seemed less, but doubtful, 

 plainly less, 

 sensibly greater. 



7-2 

 7-9 



5'3 

 5-8 



seemed greater, but doubtful. 



Calc. S. S. tried same way. 

 4-0 



4'5 

 6-0 



5'5 



plainly greater, 

 scarce sensib. gr. 

 plainly less, 

 sensib. less. 



Salt in 29. 

 4'5 



7-0 

 6-5 



Glauber's salt. 

 Tube 15 



4-2 

 3-8 

 4-2 



4-4 

 4-6 



3'4 

 3-6 



22 



plainly greater, 

 scarce sensib. greater, 

 plainly less, 

 scarce sensib. less. 



plainly less. 



no sens. diff. 



scarce sens. less. 



do. 



just sens. less. 



sensibly greater. 



scarce sensib. less. 



* [See facsimile on the opposite page. The results are given in Art. 694. See 

 Note 34, p. 430, and Introduction.] 



C. P. I. 21 



