No. 2, September, 1921] FORESTRY 109 



of a recent Austrian mission to Greece under Dr. Stengel a higher forestry school has been 

 founded at Athens, and a corps of men has been built up for torrent control work. The new 

 laws provide further for the encouragement of private forestry, revise the whole state organi- 

 zation along modern lines, and provide for forest fire protection. The Austrian mission has 

 also initiated growth and volume studies on the firs of Greece. — F. S. Baker. 



704. Anonymous. Price list of forest-tree transplants, ornamental shrubs, hedge plants 

 and seeds obtainable from the forest nursery, Salisbury. Rhodesia Agric. Jour. 17: 5.54-555. 

 1920. — Conditions under which shipments of young trees are made are stated. Forest tree 

 transplants when ordered in quantities are grown and shipped in tins containing 4 to 25 plants 

 in a tin. Prices of transplants and of seeds are given for a number of species. — A. J. Pieters. 



705. Anonymous. Terpentinol, Harz und Fett aus einheimischen Nadelholzern. [Tur- 

 pentine, rosin, and fat from native conifers.] Wiener Allg. Forst- u. Jagd Zeitg. 38: 32.5-326. 

 1920. — The author discusses recent articles dealing almost entirely with the extraction of 

 resinous materials from wood chips, sawdust, etc., by distillation. — F. S. Baker. 



706. Algan, H. [Rev. of: Huffel, G. La foret sainte de Haguenau en Alsace. [The 

 sacred forest of Haguenau in Alsace.] 6 fig. Berger-Levrault: Nancy, Paris, and Strasbourg, 

 1920.1 Bull. Trimest. Soc. Forest. Franche-Comt^ et Belfort 13: 289-29G. 1920. 



707. Balme, Juan. Repoblando nuestro bosques, tendremos agua. [Conserve the water 

 supply by reforesting.] Rev. Agric. [Mexico] 5: 522-525. 3 fig. 1920. — The Mexican forests 

 are being rapidly cut to supply ties for the railroads and other demands for forest products. 

 A plea is made for reforestation. Eucalyptus species are especially recommended for this 

 purpose. — John A. Stevenson. 



708. Barbey, a. Die Rindenlaus der Weisstanne. [The bark louse of the white fir.] 

 Schweiz. Zeitschr. Forstw. 72 : 147-151. 1 pi. 1921. — It was generally conceded that the mixed 

 forests and local groups of individual species in Switzerland were less subject to insect attack 

 than the large areas of pure stands in Germany or Russia. However, during the past season 

 alarming attacks of Dreyfusia piceae C. B. {Chermes piceae Ratz.), a relative of the German 

 Dreijfusia Nusslini C. B., were noted in Jura and Aargau. The insect attacks the bark near 

 the middle of the bole and farther up (also the smaller branches), causing drying and splitting 

 of the inner bark and exudation of pitch. The tree finally dies, apparently from the drying 

 of the wood rather than from the loss of leaves. The life history is not completely known. 

 The spring form consists of dormant larvae and wingless females, and the summer form may 

 be either the typical simimer form or the migratory form of the female. A known remedy is 

 to spray the siunmer form with a mixture of 1400 parts water, 30 of nicotine, and 100 of soap. 

 The height at which the attacks are most serious makes spraying impracticable. — J. V. 

 Hofmann. 



709. Billmann, H. H. Nogle BemSrkninger om Jordbearbeidning med Motorkraf t. [Notes 

 on working the soil with motor power.] Dansk Skovforenings Tidsskr. 5: 226-230. PL 2. 

 1920. 



710. Engler, Arnold. Untersuchungen iiber den Einfluss des Waldes auf den Stand 

 der Gewasser. [Investigations to determine the influence of forests on stream flow.] Mitteil. 

 Schweiz. Zentralanst. Forst. Versuchsw. 12: 1-626. 58 pi., 127 tables. 1919. — The importance 

 of the relation of forests and run-off has long been recognized. The effects of the forest have 

 been noted in various localities, although the specific relations of complete forest cover, 

 partial cover, and denuded areas were not determined. The objects of this experiment were 

 to determine the comparative run-off on a forested area and a non-forested area, with all 

 other conditions as nearly equal as possible during (a) heavy showers, cloud bursts, (b) con- 

 tinuous long periods of rain, (c) rapid melting of snow, and (d) periods of drouth. The experi- 

 ment includes 2 watersheds known as the Sperbelgraben and the Rappengraben. The former 



