7 i8 



MISCELLANEOUS INFORMATION. 



Various Tables. 



Pounds. Carbon. 



'pitch pine . . . 1,903 43 



Canada pine . . 1,870 42 



yellow oak . . . 2,920 61 



white oak . . . 1,870 81 



Lombardy poplar, 1,775 4 1 



red oak .... 3,255 70 



A TABLE OF DAILY SAVINGS, AT COM- 

 POUND INTEREST. 



Per Year. 



#10 



20 

 40 



100 

 200 

 4OO 

 500 



Ten Yrs. 



#130 



260 



520 



1,300 



2,600 



5,290 

 6,500 



Fifty Yrs. 



$2,900 



5,800 



1 1, 600 



29,000 



58,000 



116,000 



145,000 



Power Required for Various Purposes. 



To drive a 20 to 30-inch circular saw, 4 to 6 horse power. 

 32 to 40 " " " 12 



48 to 50 " " " 15 



50 to 62 " " " 25 



Horse Power 

 2 to 4 

 2 to 6 



6 to 8 



7 to 12 



12 tO 15 



Revolutions per 

 Minute. 



POWER NECESSARY TO GRIND GRAIN WITH PORTABLE MILLS. 



Size of Stones. 



12-inch 800 to 900 



20-inch 650 to 700 5 to 



30-inch 550 to 600 



36-inch 450 to 500 



48-inch 350 to 400 



Bu. Corn ground 

 per Hour. 



I to 4 

 8 



10 to 15 

 18 to 25 

 25 to 35 



Bu. Wheat ground 

 per Hour. 



I to 3 



4 to 6 



7 to 10 

 12 to 15 

 15 to 18 



