2l6 roREST REGULATION 



b. Detail Record of timber cut and planting done, ("Nachweis 

 d. Betriebsergebnisse (Kontrollbnch"). 



c. Control of Total Cut, amount cut per year compared with 

 amount set in plan. "Waldangriflfs Kontrolle." 



d. History of Forest, a record of all important events, calami- 

 ties, market, experiences in cutting, thinning, planting ; improve- 

 ments, trespass ; personnel ; hunting and fishing. 



2. Revisions every ten years, ("Haupt revisionen"). 



a. Gathering data for revision. 



b. Tabulated statement covering 



1. What was done (cut, etc.) last ten years. 



2. What is to be done next ten years. 



c. Intermediate or five year Revisions, ("'Zwischen revision- 

 en"'). Careful Inspection, reports, etc. 



V. WEISE, "LEITFADEN FUR VORLESUNGEN AUS 

 DEM GEBIETE DER ERTRAGSREGELUNG." 



Publ. by Springer, Berlin, 1904 ; 202 p. 



Professor and Oberforstmeister W. Weise, for years Director 

 of the Forest Academy Miinden (Hanover- Prussia), author of the 

 well known "Waldbau", an excellent practitioner and teacher, and 

 one of Germany's leading men in the development of forestry. The 

 book, as stated in the title is to serve as guide to the students in 

 taking his course in Regulation ; it combines Forest Mensuration and 

 Regulation, and is one of the clearest and simplest statements of the 

 subject in the German language. The author treats the subject as 

 follows : 



Book I. Determination of Volume in the Forest ("Massener- 

 mittelung") including relations of H. D. and Vol. of tree 

 and Stand ; Volume and Yield tables. Chiefly Forest Men- 

 suration. 



Book II. Growth in the forest ("Der Zuwachs"). 



1. Volume growth of tree and stand. 



2. Quality growth. 



3. Growth in market price. 



