200 Forestry Quarterly. 



The introduction of the European Larch 



Value from the Tyrolese mountains to the plains 



of of Silesia dates back to Frederic the Great, 



Exotics. and now stands of this species in mixture 



with pine and spruce are coming to harvest. 



In 1906, according to Guse, a stand of about 3 acres was felled, 



the larch being no, pine 105-110 and spruce, probably volunteer 



growth, 80-100, years old. 



The yield of timberwood was 9652 cubic feet, in which pine 

 represented 28%, larch 34%, spruce 38%. The workwood per 

 cent, for larch and spruce was 94, of pine 89; diameters up to 

 24 and 30 inches ; average height of larch 100 to 1 14 feet, occa- 

 sionally 130, of pine 85 to 104, spruce 65 to 114 feet. The total 

 money yield per acre was $1,087, * n which the larch represented 

 nearly 44 per cent, although its volume was only 34%, the price 

 per cubic foot being 14.4 cents as against 10. 1 and 9.4 cents for 

 pine and spruce. Thinnings in former years, which had fur- 

 nished probably not less than 25% of the final yields had brought 

 as much as 21 cents and more per cubic foot. 



Reference is also made to the results of the celebrated larch 

 plantations near St. Petersburg, from 105 to 170 years old, the 

 oldest grown from broadcast seeding, showing maximum diame- 

 ters of over 30 inch and 130 feet in height, with 9,767 cubic feet 

 per acre. 



In the same district in Silesia some 30 to 40 acres of White 

 Pine of magnificent development and over 100 years old are to be 

 found, 80 feet in height and 20 to 24 inch diameter, cylindrical 

 and with the crowns high up. Strangely enough, however, there 

 is no market for the material and even to-day the price paid for 

 it lags behind even that for fir, which is lower than for spruce. 



Ldrche und Weymouthskiefer in Oberschlesien. Forstwissenschaft- 

 liches Centralblatt, February, 1909, pp. 84-88. 



A series of experiments and observations, 

 Natural carried on by Bohmerle for some twenty- 



and five years in the Great Pine Forest near 



Moss Cover Vienna had shown (see Quarterly Vol. IV, 

 Regeneration. p. 161) that the dense moss cover has un- 

 doubtedly a prejudicial influence on the in- 

 crement, since in times of continued drouth the moss keeps dew 



