MARKING RULES 209 



clearcutting for reproduction, was required uniformly over 

 the area very brief instructions would suffice. This is not the 

 situation which prevails on the national forest sale areas or 

 elsewhere, except in small stands. Usually on the area to 

 be operated at one time there will be several stands, or at least 

 great diversity of conditions within the one stand, which 

 make necessary a variety of different cuttings all combined 

 in a single operation. To intelligently mark such a stand 

 requires information as to all phases of the silvicultural plan 

 of management for the tree and type concerned. 



Marking rules when most highly developed supply the 

 necessary information in concise form, and are in fact sum- 

 marized plans of silvicultural management. It is desirable 

 that such marking rules or silvicultural plans be drawn up for 

 all species of commercial importance. 



One of the best examples of this type of marking rules has 

 been issued by the office of Silviculture, in District I of the 

 United States Forest Service, for stands of the Western 

 White-Pine type on the Cceur d'Alene National Forest under 

 date of January 15, 191 7. 3 



This set of marking rules is of sufficient general interest as 

 a model of what should be included as to merit the brief 

 resume which is here given. The sentences in italics are 

 taken verbatim from the original article. 



Marking Rules for Stands of the Western White-Pine type on 

 the Co3ur d'Alene National Forest. January 15, 1917. 



Part I 



Classification of Western White-Pine Stands. Evidently 

 based on composition and form of stand, age, size and condi- 

 tion of the trees. The stands are divided into two main 

 divisions with a total of five subdivisions. 



