No. 200.] 
35 
flourishing villages. The hills through which this road passes contain 
inexhaustible supplies of gypsum and limestone for lime, of the former 
of which more than forty thousand tons have already been raised, and 
are now ready for transportation. And throughout the whole of the re- 
gion bordering on the Onondaga lake, beds of marl are almost too nu- 
merous to be particularly designated, 
I have only to add to the suggestions already made, that several ma- 
nufactures in which common salt is employed, may be advantageously 
carried on in the vicinity of these springs; such as those of soda, ash, 
or British barilla, the various preparations of soda for medicine, chlo- 
ride of lime, &c. 
For the purpose of determining the relative purity of various kinds 
of salt^ I have subjected them to analysis^ and the results are as follows; 
