No. 2, June, 1921] FORESTRY 149 



Entry 463). A wave of forest destruction is at present sweeping over the entire world. 

 This destruction threatens to make wildernesses of many regions as it has made a desert of 

 the Sahara in the past, while it also tends to arrest the purification of the air, which is one 

 of the functions of the forest. Present forest areas should not be reduced. In Austria the 

 futility of clearing forest land for permanent agriculture is shown by the fact that many such 

 lands have been cultivated in the past but have been allow^ed to revert to forest when the 

 fertility of the forest humus was exhausted and the productivity fell too low for economical 

 handling for agriculture. Grazing in forests is incompatible with silviculture and must 

 be stopped. The first requisite in securing forest protection is a world-wide educational 

 campaign through schools, clubs, the press, etc., to develop a deeper regard for the forests 

 and secure a more general recognition of their economic indispensability in any progres- 

 sive state. — F. S. Baker. 



1041. Seibert, Florence B., and Jessie E. Minor. The differentiation of sulphite 

 pulps. Paper 25^': 17-20. 7 fig. 1920. — A description of a method using a combination of 

 malachite green and Congo red to show very accurately the presence or absence of lignocel- 

 lulose. — H. N. Lee. 



1042. Seiler, Hans. Die Holznot in Kamten. [The wood famine in Carinthia.] Allg. 

 Forst- u. Jagdzeitg. 38:67-68. 1920. — The lack of firewood in the cities was particularly 

 marked in Carinthia during the winter of 1919. This was due to many causes, the chief ones 

 being general insufficiency of supplies of all kinds, the rising stumpage prices which have en- 

 couraged small owners to hold their timber, and the depletion of the war when great quan- 

 tities of the most accessible fire-wood were cut to supply the army. Organization of wood 

 producers and dealers, the construction of roads, tramways, etc., and purchase of forest land 

 by municipalities, associations, and the like, is urged as the best means of escaping repetitions 

 of such a famine. — F. S. Baker. 



1043. Tubetjf, C. von. Verschiedenes Verhalten gegen Windstromung. [Different 

 responses to air currents.] Naturw. Zeitschr. Forst- u. Landw. 18: 186-187. 1920. — Tubeuf 

 refers to an illustrated paper under this title in Schweiz. Zeitschr. Forstw. 71: 177-179. 1920 

 (see Bot. Absts. 7, Entry 813) by A. Pillichody. The photograph in the latter's paper shows 

 a row of broad crowned Canadian poplars, which have grown up sloping in the direction of 

 the valley wind, and a row of Italian pyramid poplars (evidently Lombardy poplars) which 

 have grown straight, to all appearances unaffected by the wind-movement. The local custom 

 of trimming, which leaves but a small broomlike crown on the latter, and a wide-spreading 

 crown tip on the former, accentuates the different effects produced by the wind-movement. 

 The two trees are briefly compared as to their cultural desirability. — J. Roeser. 



1044. ViDAL, Y. L. Micrography of sycamore pulp. Paper 27': 18-19. 1920. [Transla- 

 tion from La Papeterie 62: 434-439. Fig. 1. 1920.]— The yield of pulp and possibilities for 

 paper making are discussed. The dimensions of the elements and the histology of the vessels 

 are given in detail. — H. N. Lee. 



1045. Watson, Russell. Forest descriptions on the forest survey of the Groton State 

 Forest, Vermont. Jour. Forestry 19: 43-50. 1921.— On the Groton Forest greater detail was 

 needed than was obtained by using the standard forest description forms. A detailed question- 

 naire was built up to give data on the stand and the characteristics of the area, noting the sil- 

 vical conditions as to planting, thinning, and final cutting. — E. N. Munns. 



1046. Weidman, Robert H. The windfall problem in the Klamath region, Oregon. Jour. 

 Forestry 18:837-843. 1920.— Heavy windfall losses occur annually throughout the north 

 Pacific Coast. It has been found that the windfall losses, on cut-over land especially, are 

 heaviest during the first years following cutting; as the trees become wind-firm the losses 

 gradually decrease. In the virgin forest the loss from year to year is more or less constant 

 except for exceptional heavy winds occasioning very heavy losses at infrequent intervals. 

 Apparently neither quality of tree nor of site enables the trees to withstand these storms; and 

 trees of all crown characters appear to suffer equally. — E. N , Munns. 



