430 Forestry Quarterly. 



at first, later two to three times a week, leaving the doors open 



if there is no frost — the more fresh air the better, — but closing 



them in frost time. 



The amount of seed is determined by the germination per cent, 



so that about 80,000 plants per acre are secured. If 7000 acorns 



go to the bushel with a 70-80 per cent, germination, 7000X.75 



X 80,000=^19 bushels are to be used. 



Buchen- und Eichenkulturen in Bregentved. Cent.ralblatt fiir das 

 gesammte Forstwesen. April, May, 1913. Pp. 149-154, 205-222. 



Channer calls attention to the excess num- 

 Selection ber of mature trees in forests managed un- 



System. der the selection system on long cutting 



cycles (or periods) where a diameter 

 limit is applied. The article would have been clearer, had con- 

 crete examples from current working plans been given. 



T. S. W. Jr. 



The True Selection System. The Indian Forester. May, 1913. Pp. 

 213-217. 



Fischer continues the discussion, which has 

 Need aroused so much discussion in India, as to 



of whether fire protection is advisable from 



Fire the silvicultural and practical viewpoints- 



Prof ^c^iow. Ke sums up his conclusions : 



I. In all forests fires are harmful. (This 

 obviously means in certain directions and not that fires have no 

 beneficial effects at all.) 



2. In certain forests, however, fire protection unaided by other 

 operations hinders natural reproduction of the most valuable 

 species. 



3. Improvement fellings and cleanings on a sufficient scale suf- 

 fice to establish natural regeneration. (This does not assert that 

 a sufficient scale is always and ever>'where attainable; in fact I 

 expressly admitted that it is not.) 



4. Fire protection is essential in : a. Forests required for water- 

 supply or protection against erosion; b. Forests where natural 

 regeneration is secured or artificial regeneration is preferable. 



5. Fire-protection to be really effective must be continuous. 

 (This, of course, is qualified by conclusion 2 supra.) 



T. S. W., Jr. 



The Need of Fire-Protection in the Tropics. The Indian Forester. May, 

 1913. Pp. 225-232. 



