APPENDIX B 



TABLES SHOWING THE CONTENTS OF TIMBER, 

 EITHER ROUND OR SQUARE, BY THE QUARTER 

 GIRTH MEASUREMENT 



Thus, a log 17 feet long by 9 inches quarter girth will, on reference 

 to the tables, be found to contain 9 cubic feet and 6 inches. 



Note. According to custom, any fraction of a cubic foot is multi- 

 plied merely by 12 and expressed as inches 12 of such inches equal i 

 cubic foot. Thus, in the above example, the correct cubic contents equal 

 9^4 cubic feet = 9 cubic feet 972 cubic inches. 



But, in order to facilitate the use of the tables in practice, the 

 fraction T ^j of a cubic foot is multiplied by 12, and the result, f^, 

 expressed as 6j\ ; or, leaving out fractions of an inch, merely as 6 inches 

 that is, one-half a cubic foot. 



467 



