VOLUME TABLES 57 
VOLUME TABLE OF MERCHANTABLE CORDS. 
In order to convert solid cubic feet into cords it is 
necesssary first to divide by one hundred and twenty- 
eight, the number of cubic feet in one cord, and then to 
divide by a factor which shall represent the relation be- 
tween solid and stacked wood. In Germany this factor 
has been found from a large number of experiments to 
be 0.65 for round billets stacked in the woods. In con- 
sequence of irregularities in shape due to roughness of 
the bark and to swellings where the branches entered 
the trunk, this figure seems to give results too large for 
rossed billets. Forthe casein hand,o.7 is more accu- 
rate. When the results of dividing the number of cubic 
feet found in Table 13 by the factor 0.7 are compared 
with those obtained by dividing the values in the table 
of standards by 2.92, which is the number of standards 
in one cord, determined by the Santa Clara Lumber 
Company from several thousand cord measurements, 
they are found to correspond almost exactly. After this 
confirmation of the factor 0.7, it was adopted, and the 
table of cords was constructed by dividing the values 
in the table for cubic feet by one hundred and twenty- 
eight and the result by 0.7. 
