40 



NEW YORK STATE MUSEUM 



the peat from the bog in rectangular blocks and spreading these 

 blocks on the surface of the bog to dry. When the greater part 

 of the moisture is dried out, the blocks are stacked up like bricks, 

 so that the wind has free access to all parts. When thoroughly 

 air-dried, this fuel contains in many cases 20^ of moisture, so that 

 the full fuel value can not be obtained in burning it because of 

 the amount of heat necessary to drive off the moisture. 



Peat prepared in this manner, though ordinarily taken from 

 the lower part of the deposit, is bulky and under the best condi- 

 tions will not yield more than five ninths as much heat as is 

 generated from the same weight of anthracite coal, which is about 

 the same result as is obtained by the use of wood, as will be seen 

 by reference to the following tables. These show in the columns 

 marked A the number of pounds of lead reduced from litharge 

 by 1 pound of the respective fuels and in the columns marked B 

 the number of pounds of water raised from 32° F. to 212° F. by 1 

 pound of fuel. 





Partially dried 

 Berthier 



Perfectly dry 

 Containing 9% water Schodter and 

 Winhler Peterson 



f 



A 



B 



A 



B 



B 



Oak 



12.5 



28.3 



14.05 



31.82 



39.82 



Ash 



• 



.... 



14.96 



33.89 



39.76 



Sycamore 



13.1 



29.7 



14.16 



32.07 



40.85 



Beech 



13.7 



31 



14 



31.71 



39.44 



Birch 



14 



31.7 



14.08 



31.9 



39.73 



Elm 



.... 



.... 



14.5 



32.84 



41.55 



Poplar 







13.04 



29.54 



40.72 



Lime 







.... 



14.48 



32.8 



41.87 



Willow 



.... 



.... 



13.1 



29.67 



39.61 



Fir 



14.5 



32.8 



13.86 



31.39 



41.25 



Pine 



13.7 



31 



13.88 



31.44 



40.82 



Scotch fir 



.... 



.... 



13.27 



30.06 



46.85 



Hornbeam ..... 



12.5 



28.3 











Alder 



13.7 



31 









Larch 



.... 



.... 







41.25 



