Tables and Rules 325 



\\ KIGHT PER 1000 FEET OF SEASONED LUMBER 

 KIND LB. KIND LB. 



Ash 3550 Poplar :{u.1i 



Cedar 2<.)'J.-> Willow 2780 



Cypress 3350 Locust 3800 



Beech 4000 Norway Spruce . . . 2760 



Cherry 3720 Hemlock 2350 



Birch 21 .-.<) Ili.-kory .'i960 



Dogwood 3'.i:W Walnut 3690 



Elm 3220 Pitch Pine 4150 



Butternut 1960 Red Pine 3075 



Chestnut 3170 Yellow Pine .... 2S1M) 



Maple 4000 White Pine 2880 



Oak ; 



WELL-SEASONED FUEL 

 (Scribner's Lumber and Log Book) 



"The best time to cut, haul and prepare wood for fuel 

 is in the comparative leisure of the winter, and where 

 wood is used for fuel it should be thoroughly dried, as 

 in its green and ordinary state it contains 25 % of wat< -r : 

 the heat to evaporate which is necessarily lost ; therefore, 

 the burning of green wood is greatly wasteful. 



"A log of unseasoned wood weighing, say 100 11 >s.. will 

 weigh, when dry, only 66 Ibs. What now has it 1<> 

 any combustible matter? anything that will warm your 

 hou k your l'oo :1 ? \o ! it lias lo>t :>1 Ibs. of water. 



If about one-third the weight of given wood i> water, then 

 there are l-J-U Ibs. of water in a cord. This has to be made 

 into steam beforv the wood can be burned. By drying the 

 wood most of the water i- rxpelled and there is littl- loss of 

 heat in the drying as it burns. Now, it costs about 

 $2.00 to work up a cord of wood for the Move after it is 



