55 



II The Hkating and Evaporating Effect as Shown by the Cai.orimetric 

 Test : 



(A) Data I'rom twenty samples of IiKliana coal analyzed by Dv. W. 

 A. Noyes* : 



Evaporative 

 B. T. U. Calories. Effect. 



Maximum 13219 7344 13.4 



Minimum 11G91 6495 12.1 



(B) Data from twenty-nine samples of Indiana peat (oven dried) : 



Maximum 10406 5814 10.8 



Minimum 4541 2523 4.7 



SUMMAKY. 



Evap. 

 Calories. Effect. 



1 lb. best of 20 samples Indiana coal tested yields 7344 13.4 



1 lb. best of 29 Indiana peat tested (oven dried), yields. 5814.6 10.8 

 1.26 lbs. best Indiana peat (No. 21) equals in thermal 



effect 1 lb. of the best Indiana coal (No. 17, Report 



State Geologist, 21, p. 106). 



1 lb. oven dry peat, average of 29 samples, yields 4288 8.0 



1 lb. coal, average of 20 samples, yields 6860.8 12.8 



1.6 lbs. average peat (oven dry) equals in thermal effect 



1 lb. of average Indiana coal. 



The cost of preparing the peat, or pressing it into briquettes, must 

 be considered in a comparison of peat with coal. Some peat briquetting 

 plants are already in operation in Indiana, e. g. The Indiana Peat Co. of 

 North Judson, Starke County. This firm estimates the operating expenses 

 for a small peat plant of thirty tons capacity, as follows :** 



1 foreman $3 00 



1 engineer 2 75 



2 peat men 4 00 



4 boys 5 00 



1 .man, hoisting engine 1 50 



2 men at press 4 00 



♦Report of State Geologist, 21, p. 105. 

 **Report of State Geologist, 31, p. 99. 



