Il6 Forestry Quarterly. 



sion here; however, it is of considerable interest in view of the 

 possible development of communal forests in Xew York* and 

 Pennsylvania. 



Opinions divergent from those of Dr. Hemann are expressed 

 by Oberforster Dr. Gehrhardt in an open letter on the same 

 subject. The matter is of too restricted interest to warrant re- 

 producing it here, however, the discussion is quite illuminating as 

 showing present tendencies in Forest Organization abroad. Among 

 these is the insistence that so specialized a subject as working 

 plans be placed in the hands of a Central Bureau of Forest Or- 

 ganization rather than left to each Forest Supervisor. As Dr. 

 ]\Iartin has said : "The assumption that the Forest Supervisor 

 can make the working plan for his forest in a manner satisfying 

 the demands of the present day, can only come from those 

 persons who do not know sufficiently the far-reaching significance 

 of working plans." 



Ertragsregeltmg in Prcussischen Geineindcwaldimgcv. Allgemeine 

 Forst- und Jagdzeitung, November, 1913, pp. 384-389. 



Ueber die Anu'cndbarkeit dcr iicurii Preiissisclicn Betricbsregelungsan- 

 weisung aiif die Rheinischen Geineinde Waldungen. Allgemeine Forst- 

 und Jagdzeitung, December, 1913, pp. 422-429. 



In a review of investigations by Apper- 



Douglas Fir mann, there is cited an interesting yield of 



in Douglas Fir which was introduced into 



Denmark. Denmark* towards the middle of the last 



century. A sample plot planted in 1880 



yielded in the first thinning (1905) 200 cubic meters of timber 



wood to the hectare, and had, when 29 years old in 1909, a 



total volume of 377 cubic meters to the hectare, which amounts 



to an annual production of 20 cubic meters per hectare for the 



first 29 years, (286 cubic feet per acre.) 



T. S. W., Jr. 



Revue des Eaux et Forets, December i, 1913, p. 720. 



*"Counti', Town and Village Forests," Cornell Reading Course, Vol. 

 II, No. 40, May 15, 1913. 



