72G JOURNAI, OF FORESTRY 



mate, extreme dryness of air and soil, and of violent dry northeast 

 winds requires protection of the pasture by isolated trees or groups. 

 Here, he claims, the presence of trees not only gives needed shelter, but 

 favors the propagation of valuable forage plants and augments relative 

 humidity and precipitation. 



Journal Forestier Suisse, May-June, 1919, pp. 65-81. 



During the war the quebracho forests of north- 

 Reproduction of ern Argentina were drawn upon very heavily for 

 Quebracho fuelwood, both for domestic and for industrial 



Forests use. Several million tons were cut, and the de- 



mand has not yet ceased. There is some anxiety 

 lest this drain on the supply lead to destruction of the forests, with its 

 disastrous efifects on the industries dependent on quebracho. A law 

 passed in 1906 requires reforestation of stands of this species, but it is 

 not enforced nor even widely known to be in force. Quebracho repro- 

 duces readily from seed and requires no care except protection, espe- 

 cially against grazing. The tender seedlings are relished by stock. 



Las Repoblacioncs Porcstales. Revista Forestal, 3: I353-I354- I9i9- 



Is oak in France to meet the apparent fate of 



Is France chestnut in this country ? This question is raised 



to Lose in a rather pessimistic article by Doe, who calls 



Its Oak? attention to the damage done by the fungus 



oidium since its appearance in the Province of 



Champagne, about 1907. While the disease attacks other species, it is 



particularly partial to oak. It is more virulent and spreads more rapidly 



in wet seasons, especially during the period from the middle of April 



to the middle of May, when vegetation is starting. Young trees are 



most susceptible to attack, particularly coppice shoots of the current 



year. The shoot is killed back from the top year after year until it 



finally dies. Seedlings, in spite of the theory as to their superior vigor. 



suffer fully as badly, if not worse, than sprouts. Cases have even been 



noted where seedlings as much as ten years old have been completely 



destroyed. No remedy for the disease has yet been discovered, and 



even if one should be found the author questions whether it could be 



practically applied. 



In view of the fact that oak comprises nearly 30 per cent of the forest 

 area of France and constitutes its most valuable species, it would indeed 

 be a calamity should Doe's fears as to its possible extermination be 



