Forest Mensuration II 



The artificial cubic foot corresponds with a log 12 inches long and 

 1 6 inches thick, which naturally contains 1.4 cubic feet. The rule as- 

 sumes that 40/140 or 28.5% of a log goes to waste in the sawing process 

 as dust or slab. 



To quickly transform artificial cubic feet into board feet, the laws pre- 

 scribe certain arbitrary equivalents, instead of allowing 12 board feet 

 to equal one artificial cubic foot of timber. In New Hampshire, 10 board 

 feet equal one artificial cubic foot. In Maine, 11.5 board feet equal one 

 cubic foot. The rules might be used in connection with a cylinder table, 

 deducting 28.5% from the table data and multiplying the remainder by 

 10 or by 11.5. 



REMARK : According to the Forest Reserve Manual, logs over 24 feet 

 long are treated as 16 foot logs and fractions thereof. 



PARAGRAPH XIX. 



EQUIVALENTS. 



One cubic meter equals 35.316 feet or 1.308 cubic yards. 



1,000 board feet of sawn lumber, I inch and more thick, correspond 

 with 2.36 cubic meters of sawn lumber. 



A product of one cubic meter per hectar (2^2 acres) equals a product 

 of 14 cubic feet per acre. 



One gallon equals 231 cubic inches in liquid measure, or 268.8 cubic 

 inches in dry measure (which is also J^ peck). 



One liter equals 1.0567 quarts; one cubic foot equals 7.4805 gallons 

 or 28.3 liters. 



Logs yielding when split one cord of wood, will yield, when sawn: 



The Forest Reserve Manual adopts 2 cords as equivalent to 1,000 cubic 

 feet b. m., provided that the wood is split from timber 10 inches in diam- 

 eter and over. 



