120 



bushels annually. The quality of the salt, has, also, I have reason to 

 believe, been generally improved. Complaints, however, are yet some- 

 times made on this score, and the prejudice which was formerly enter- 

 tained against the " Onondaga salt," has not been entirely removed. 



More than twenty years since, my attention was directed to the 

 salines of Onondaga county, when I made an analysis of the water, and 

 carefully examined the various modes of manufacturing salt which 

 were adopted. I have at various times subsequently visited these 

 salines, and have devoted much time to the study of all the facts which 

 I supposed would have an influence in improving the manufacture of 

 salt and of increasing the value of the springs. All the information 

 which I collected up to 1842, was embodied in my work. The follow- 

 ing additional facts are conceived to be of sufficient interest to be here 

 introduced. 



In June, 1844, I analyzed two specimens of salt, the one from the 

 " Hope Factory," in Onondaga county, and the other the " Liverpool, 

 or Ashton." The composition in 1,000 grains was as follows : 



Liverpool, or Ashton : 



Insoluble matters, - - - - 



- ' ■ 



0-25 



Sulphate of lime, - 



. 



11-65 



Sulphate of magnesia, 



- 



1-56 



Chloride of magnesium, - 



■ 



trace. 



Chloride of sodium, (pure salt) 



■ 



- 986-54 



1,000-00 



Hope Factory : 



Insoluble matters, 



0-15 



Sulphate of lime, 



- 11-06 



Chloride of calcium, - 



0-38 



Chloride of sodium, (pure salt) 



- 988-41 



1,000-00 



These results, together with those previously given, sufficiently show 

 the superior purity of the samples of Onondaga salt. Their correct- 

 ness is generally confirmed by the analyses executed by Dr. Emmons, 

 and of which the results are published in the Transactions of the New- 

 York State Agricultural Society, for 1847, p. 281. The complaints 

 which have been made in regard to this salt, can only have arisen from 



