300 APPENDIX 



to the percentic or absolute representation of the different age classes 

 in area or amount, or (in selection forest) in number of trees (G., 

 Altersklassenverhaltniss) . 



Disruption of age classes refers to the attempt to provide safety 

 against fire or insects, by locating the age classes in small areas. 

 G., Altersklassenzerreissung. 

 Normal age classes. See Normal. 



All-aged forest. (Obs.) See Uneven-aged forest, Selection forest. 



Annual plans. See Working plan. 



Area tape. A tape from which the basal area may be read directly when 

 it is placed around the tree. 



Artificial reproduction. See Reproduction. 



Aspect. The direction toward which a slope faces. The eight main 

 points of the compass, N., NE., E., SE., S., SW., W., NW., are distin- 

 guished in forest description. 

 Syn.: exposure. 

 G., Lage. F., exposition. 



Assortment. The classes of wood materials into which the harvested 

 crop may be divided, as logs, fuel wood, pulpwood, railway ties, etc., 

 or according to size into timberwood (stoutwood, above 3-inch diam- 

 eter) ; brushwood (below 3-inch diameter) ; cordwood, split and billets, 

 etc. See also Grading. 



G., Sortiment. F., categorie. 



Ball planting. See Forest planting. 



Bark blazer or gouger. See Scribe. 



Barren. An area which is devoid of trees (moss barren), or bearing only 

 stunted trees, then denoted by the character of the tree growth, as 

 pine barren, oak barren, spruce barren. 



Basal area. The area of a cross section of a tree, usually expressed in 

 square feet, and usually referring to the section at breast-height. The 

 sum of the basal areas of trees in a stand is the basal area of the stand, 

 and is usually expressed in square feet per acre. 

 G., Stammgrundflache. F., surface terriere. 



Base capital. See Capital. 



Biltmore stick. A graduated rule, usually of wood, the graduations of 

 which indicate (when the rule is held tangentially to the tree) the 

 diameter of the tree at the point where measured. The rule is con- 

 structed on the principle of similar triangles. See also Caliper. 



