
ORIGIN AND USE OF THE LOG RULES. 49 
The Humphrey or Vermont Rule. 
This scale is used in Maine and New Hampshire, and locally in 
Delaware, New York, * Pennsy lvania, and Maryland. It is the 
statute rule of Vermont. The Revised Statutes of Vermont give 
the law as follows: 
In all bargains for or sales of logs of round timber by measure 
the number of feet, unless otherwise stipulated by the parties, 
shall be ascertained as follows: Multiply the average diameter of 
the top of the log, inside the bark, in inches by half ‘such diameter 
in inches, disregarding fractions of an inch less than one-half and 
regarding fractions greater than one-half asa full inch, and the 
number obtained as the product will represent the contents in feet 
of a log of that diameter twelve feet long. The actual contents 
will be the same fraction of the above product as the actual length 
of the log is of twelve feet. If the logis more than twelve feet 
long, commence at the upper end and measure it into sections of 
twelve feet, then find according to the above rule the contents of 
each section and fractional section. The aggregate of the con- 
tents of the sections will be the contents of the whole log. 
In some localities this rule, with very slight variations, is known 
as the Winder Rule. 
The Bangor Rule. 
This is also called the Penobscot Scale and the Miller Rule. It 
is used in Maine, Vermont, New Hampshire, and locally in Wash- 
ington. The Bangor Rule is based upon computations derived 
from diagrams drawn for logs of different diameters. The figures 
thus secured were afterwards adjusted by comparison with meas- 
urements of logs actually sawed at the mill. 
The Cumberland River Rule. 
This rue is known in some parts of the country as the Evansville 
Rule, and the Third and Fifth Rule. It is used in Tennessee, 
Kentucky, Indiana, Ohio, Michigan, Illinois, Massachusetts, and 
probably in some other States. 
- Itis based upon the following formula: Deduct one-third from 
the diameter at the small end inside the bark to reduce the round 
log to square timber. Then from one side of the square thus ob- 
tained deduct one-fifth for saw kerf; multiply the remainder by 
27824— Vol. 1, No. 36—02—-4 
