194 



PRINCIPLES OF AMERICAN FORESTRY. 



into the top of a tree for the purpose of measuring upper 

 hmbs and diameters. The number of feet board measure 

 in logs is ascertained by means of the ordinary log rule, 

 Minnesota standard, used by scalers, and a board rule 

 measures the lumber as it comes from the sawmill. 



Fig. 67. — Using the accretion-borer on the 

 trunk of a tree. 



A Camping Outfit is necessary where the work of the for- 

 ester is done in the depths of the forest, far from habitations 

 and railroads, and perhaps a wagt)n and a team of horses 

 or pack horses should be provided for moving camp and 

 hauling supplies. If the area to tie worked over is great, 

 the chief of the party should have a good saddle horse, so 

 tliat he may get over the country quickly and lay out 

 work for his subordinates who operate on foot. 



