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APPENDIX I. 



MEASURING LOGS. 



It is advisable that everyone who has anything to do with forests should know 

 how to ascertain the volume of a log, i.e., the number of cubic feet in it. The true 

 volume of a log is found by taking the girth or diameter in the middle, then calculating 

 the area of a section at that point, and then multiplying this sectional area by the 

 length of the log. The sectional area here referred to means the number of square feet 

 or inches in a section cut through the log. This may be found from this simple 

 formula: — 



Sectional area = girth 2 x .0796. 



' ' Girth ' ' here means the measurement of the log round the middle of its 

 length. The volume is then ascertained from the following formula: — 



Volume = girth 2 x .0796 x length. 



Thus, if a log has a girth in the middle of 9 feet and is 20ft. long, the volume 

 is — 



9 x 9 x .0796 x 20 = 128.9 cubic feet. 



If the diameter of the log in its middle has been measured by calipers, the 

 sectional area is found by the formula — 



Sectional area = diameter 2 x .785. 



and from that we get 



Volume = diameter 2 x .785 x length. 



Thus, if a log has a diameter in the middle of 3 feet and a length of 20 feet, 

 its volume will be 



Volume = 3 x 3 x .785 x 20 

 = 141.3 cubic feet. 



APPENDIX II. 



THE FOREST SERVICE OF WESTERN AUSTRALIA. 



THE TRAINING OF FORESTERS. 



Forestry is a science, and it is essential, therefore, that those whose duties lie 

 in the forests should possess the special knowledge which the efficient practice of 

 forestry demands. 



The problems involved in the maintaining of a sufficient and continuous supply 

 of timber from a country's forests are many, and a great number of them can only be 

 fully solved by expert knowledge. Modern needs and modern conditions can no longer 

 be met by the old "rule of thumb" methods. The time is past wfien wastefulness in 

 converting great trees into marketable timber can be viewed with complacency. The 

 modern forester, if he is to give of his best to the service employing him, must bring 

 to his task a great deal of information that cannot be acquired by a more or less 

 lengthy acquaintance with the forests in or near which he may dwell. Such experience 

 has a value of its own, but it must be supplemented and systematised by a careful study 

 of organic detail and by the amplication of scientific principles. The modern forester, 



