2) See THE WOODSMAN’S HANDBOOK. 
and divide by the square of the diameter of the standard; then 
divide by the length of the standard and multiply by the length 
of the log. 
THE NINETEEN=INCH STANDAND RULE. | 
One of the standards in most common use is the so-called Nine- 
teen-inch Standard, or ‘‘market,’’ of which the unit is a log 13 
feet long and 19 inches in diameter at the small end inside the 
bark. Expressed algebraically, the formula for determining the 
contents of a given log by the nineteen-inch Standard Rule is: 
V— Dee 
12% 13 
in which V represents the volume in standards, D the diameter 
inside the bark at the small end, and Z the length of the log. 
This log rule is most commonly used in the Adirondack Moun- 
tains of New York. It is particularly popular in measuring pulp 
wood, because the rule is based on volume and not on board 
measure. 
Standard measure is commonly, though incorrectly, translated 
into board measure by multiplying the volume of a given log in 
standards by a constant. In the case of the Nineteen-Inch Stand- 
ard Rule it is assumed that one standard is equivalent to 200 board 
feet, and the number of standards in a lot of logs, multiplied by 
200, gives the approximate board contents. 
THE NEW HAMPSHIRE (BLODGETT) RULE. 
Although usually not recognized as a standard log rule, the 
Blodgett Rule, which has been adopted as the statute rule of New 
Hampshire, is nothing more nor less than a standard rule based on 
the same principles as that of the Adirondack ‘‘market.’’ The 
Blodgett standard assumes as a unit a log 1 foot long and 16 inches 
-indiameter. The contents in so-called cubic feet (more correctly, 
standards) of a log of any dimensions is found by the following 
formula: _ 
2 
V=7ext 
_in which V is the volume in standards or ‘‘ Blodgett cubic feet,’’? D 
the diameter in inches, and JZ the length of the log in feet. 
