2IO FOREST REGULATION 



Part IV. Control and Continuance of Working Plans ("Kon- 

 trolle iind Fortfiihrnng d. Betriebsplane"). 



a. Control through proper l^ook-keeping, ("Gedenkbuch" and 

 "Wirtschaftsbuch"). 



b. Revisions, ("Taxations revisionen"). 



Part V. Regulation in Various States, (refers only to State 



forests) and includes Regulation in Prussia, Bavaria, 



Saxony, Baden, Hessen, Grd. Diichy Saxony, Alsace- 



Loraine, Austria and France. 



In the former edition he adds a Review ("Ruckblick") which 



sums up the present situation in a very able manner. Among the 



points made are these : 



1. Methods in actual practice differ to some extent but resemble 

 far more than appears from the Instructions. 



2. Most essential points in all alike are : 



a. To determine what Stands should be reproduced in the next 

 year, or next ten years. 



b. In judging them we must consider the forest as a whole. 



c. All agree practically, that the Normal Area Regulation 

 (A/r = yearly area to cut) must serve as final. 



d. This Measure is modified according to the condition of age 

 classes. 



e. In this agreement on a Normal Area to be cut each year 

 (A/r) the rotation r is set as a definite, fixed quantity. In practice 

 it must of necessity be a variable, the age at which a stand is actually 

 cut must depend on many things, its growth and condition, market, 

 accidents to other stands, etc. 



III. A. VON GUTTENBERG, "FORSTBETRIEBSEIN- 

 RICHTUNG." 



Tubl. by Denticke, Wien and Leipzig, t()1 t ; 2d ed. : 393 p. 



Contains excellent maps of samples in forest division. 



Prof. Dr. Adolf Ritter von Guttenberg of the Imperial Academy 

 for Agriculture ( Bodenkultur) is well known as the foremost 

 authority in forestry in .\ustria : author of Forest Mensuration in 

 Lorey"s Handbuch, etc. The book is s])ecially interesting to the 



