BOILER No. 16. 

 Results of Tests, Boiler No. 16. ( Average of two.) 



115 



NOTE. The mixed fuel when fired contained 4 1-2 per cent, of moisture. 



The tests on Boiler No. 16 had for an object the determi- 

 nation of the relative economy of three different kinds of coal, 

 viz : anthracite stove coal, anthracite chestnut No. 2, and a mix- 

 ture of two parts pea and dust and one part Clearfield bitumi- 

 nous. On the first two tests the damper was one-fourth open ; 

 on the test with the mixed fuel the damper was open halfway, 

 and in all cases the damper was kept in a fixed position. The 

 evaporative results of the three tests, based on coal, are almost 

 identical. The various results based on the cost of fttels 

 required to evaporate 30,000 pounds of water from and at 212 

 degrees, according to the prices which ruled at the time the 

 tests were made, are as follows : 



