TABLE XLIII, 



SHOWS THE SOLID CONTENT IN CUBIC FEET AND INCHES OP ROUND 

 TIMBER, OR GROWING TREES, FROM 1 TO 40 FEET IN LENGTH, AND 

 AT QUARTER-GIRTS, FROM 4 TO 38^ INCHES. 



THE various quarter-girts are placed in the first column on the 

 left hand ; the lengths are placed on the tops of the other columns 

 in their order; and the solid content at any given quarter-girt, 

 and any given length is found under that length, opposite the 

 given quarter-girt, in cubic feet and inches. 



NOTE. Each inch denotes a slice an inch thick, and 1 foot tha 

 side of the square, so that 12 of these slices or inches make a 

 cubic or solid foot, and in adding two or more contents together, 

 1 for every 12 inches is to be carried to the feet column. In 

 calculating the Table, fractions which do not exceed a half inch 

 are neglected, above a half inch they are reckoned 1. 



The usual way of measuring round or unsquared timber, if the 

 tree tapers regularly, is to take the girt in the middle with a 

 cord, and after deducting from 2 to 4 inches, as allowance for the 

 bark of elm, beech, ash, &c., and 5 or 6 inches for the bark of old 

 oaks, the cord is folded into four equal parts for the quarter-girt. 

 If the tree is irregular in shape, several girts will require to be 

 taken, and their lengths added together ; their sum is to be divided 

 by the number of girts, and the quotient is a mean girt, the 

 fourth part of which, after making allowance for the bark, is to 

 be taken for the quarter-girt. Timber under 6 inches diameter 

 is not included in measurements, unless by special agreement. 



The rule to find the content is square the quarter- girt, mul- 

 tiply the product by the length of the tree ; this last product is 

 the solid content. 



EXAMPLE. Required the solid content of a round tree 19 feet 

 long, and the mean girt, after making allowance for the bark, 85 

 inches. 



The quarter girt of 85 inches is 21 J inches, tft. In. Pts. 



or, 193 



to be multiplied into itself or squared . 193 



1 9 3 

 1 3 11 3 

 g__3 9 



317 ~G~9 



Which multiply by 10 and 9 = 19 feet, . JIO 



31 4 3 7~6 



Product by multiplying by 9, , . 23 280 9 



Content of the tree nearly 59 feet 7 inches, 59 5H 8 3 



