4>M 



APPENDIX. 



EXPLANATION OF TABLE I. 



This Table requires little explanation, as every one must 

 imow that the length and girth of the tree must be taken be- 

 fore the contents can be known. If a tree tapers equally from 

 the bottom to the top, take the girth in the middle, and di- 

 vide it by four, which gives, what is technically called by mea- 

 sm'ers, the side of the square ; that is, when the tree is mea- 

 sm*ed after the bark is cut off, or after an allowance is given 

 for it, which is generally 1 inch out of :jth of the whole 

 girth ; as, if ^th of the girth, including the bark, be 9 inches, 

 then 1 inch is deducted, and ^jth of the girth is only counted 

 8 inches. But when trees taper unequally, it will be neces- 

 sary to take the girth at different places, add them all toge- 

 ther, and divide the amount by the number of times you have 

 taken the girth. Suppose you have taken 6 girths, dividing by 

 6 gives a mean girth, and, dividing the mean by 4, gives the 

 .^ide of the square. 



The side of the square is marked in inches on the left-hand 

 side of the Table, and the length, in feet, at the top ; the solid 

 contents are found at the angle of intersection. For example, 

 if the length of a tree be 20 feet, the girth 40 inches, ^tli of 

 which is 10 inches for the side of the square ; then look at the 

 top of the table for 20 feet, and in the same column, opposite to 

 10 inches in the side of the square, you will find the solid coii- 

 :tents of the tree to be 13 feet 10 J inches. 



