No. 275.j 
29 
It is computed that 100,000 bushels of hydraulic lime are annually 
sent from this town. The average price is fourteen cents a bushel, 
which therefore yields a return of $14,000. 
42. The following are the results of two analyses of hydraulic lime- 
stone from this county; the first^ by Mr. H. Seybertj^^ the second, by 
myself. 
1. 2. 
Carbonic acid, .... 39 . 33 38 . 65 
Lime, 25.00 27.35 
Magnesia, 17.83 16.70 
Silica, 11.76 8.95 
Alumina, 2.73 4.90 
Peroxide of iron, . , 1.50 1 , 75 
Moisture,. 1.50 Moisture, bituminous matter & loss 1.70 
99.65 100.00 
The composition of the calcined lime in the state in which it is ordi- 
narily used as a cement, is as follows: 
Carbonic acid and moisture, 10 . 90 
Lime, 39.50 
Magnesia, 22.27 
Silica, 16.56 
Oxide of iron and alumina, 10.77 
100.00 
The proportion of carbonic acid^ however, depends entirely upon the 
manner in which the calcination is conducted, and it probably differs 
considerably in different specimens. 
43. The blue fetid limestone which is associated with the water lime 
is a nearly pure carbonate of lime, containing 0.70 per cent of insoluble 
matter, and a trace of oxide of iron and bitumen, to which last is pro- 
bably to be ascribed the odour which it gives out when struck with a 
hammer. It contains no magnesia. 
44. I have also analyzed a specimen of the calciferous slate of Ea- 
ton, from the hill on the east side of the village of Chittenango. The 
results are as follows: 
* Transactions of ths American Philosojphical Society, New Series, li, S29. 
