FORESTRY. 263 



The locust is easily propagated, either fi-oiii ruot cuttings or seed, and the seed 

 retains its vitality for a nuniher of years if huried deep in the ground. The seed 

 should l)e drilled in well ijulverized rich soil early in the spring, and the su])sequent 

 method of management will be determined by the purpose for which the plantation 

 is made. In most cases the trees should stand 4 by 4 or 6 by 6 ft. apart. While the 

 locust grows well in pure plantations, the best success usually follows where it is 

 mixed with some heavy foliage tree such as osage orange, hardy catalpa, white elm, 

 etc. It is a good tree to plant in mixtnres with black walnut, the 2 species standing 

 in alternate rows. At the expiration of about 15 years the Lx-ust in this case should 

 be cut out for fence posts, leaving the black walnut for the linal stand. 



The poplars, C. Durieux {Ulmj.Agr. (kmbloux, 13 {1903), No. 11, pp. 500-511).— 

 The author describes poplars as forest trees, giving extended notes on Poimlus alba, 

 P. tremula, P. nigra, and P. canadensis or P. monilifera. The reproduction of these 

 different species is described and suggestions given for their propagation in the 

 nursery and in permanent ijlantations. 



Some Eucalyptus hybrids in the Mediterranean reg-ion, J. Tkabut {Rer. 

 Hurl. \_I\u-ix'], 75 {1H03), Xu. 14, pp. 3^\5-3JS,figii. 3). — The author gives a description 

 of several well characterized hybrids of Eucalyptus which have originated in the 

 region about the ]Mediterranean Sea. Most of these are said to be more vigorous 

 and much better adapted to their surroundings than the sijecies from which they 

 were descended. 



Japanese bamboos and their introduction into America, D. G. Faikchild 

 {U. S. Depd. A(jr., Bureau of Plant Industry Bui. 43, pp. 36, pU. 8). — This bulletin 

 discusses the importance of the bamboo industry in Jajian, Japanese methods of 

 propagating l)amboos and managing bamboo groves, profits in the lousiness, localities 

 in the United States where the industry is likely to succeed, and gives popular 

 descriiitions of a large number of different varities and species of bamboos. 



The subject is discussed primarily from the standpoint of bamboo as a forest tree. 

 Methods of growing the edible bamboo are also described and some recipes given for 

 its preparation for the table. It is stated that some species of bamboo will stand a 

 temperature of 6° F. It is believed that there are in California, Oregon, Texas, and 

 throughout the Gulf and Southern States many locations suitable for the culture 

 of bamboo. 



Studies of trees in -winter, C. K. Schneiuek {Dendrologische ]Vi)ite7:'<ttuUen. Jena: 

 Gustar Fischer, 1903, pp. VI \- 290, Jigs. 224). — An account is given of the winter 

 aspect of more than 400 species of trees and shrubs which are native and introduced 

 in Germany. Keys are given based upon tlie bud, leaf scar, and structural charac- 

 ters, by which the different species in their winter condition may lie determined. 



Chemical studies of some forest products of economic importance, W. H. 

 Krug ( V. H. Dept. Agr. Yearbook 1901, pp. 321-332). —Studies have been begmi on vari- 

 ous forest products, such as tanning materials, resins, gums, etc., and a report is given 

 of some of the investigations thus far t'arried on regarding the composition of American 

 woods and barks. The analyses given show the moisture, total cellulose, xylan, sol- 

 uble contents, tannin, ash, etc., for a number of specimens of the western hemlock 

 {Tsuga In'tero]iJn/lla), red oak (Quereas rubra), chestnut oak {Q. prinns), white oak 

 '\Q. alba), and ])lack oak (Q. velutina). Notes are also given on studies of the anat- 

 oniy and histo-chemistry oi oaks and an account of investigations of turpentine adul- 

 teration. 



Numerous complaints have been made of the unsatisfactory behavior of turpentine 

 oils, and a number of samples of oils from different sources were subjected to exami- 

 nation. Several specimens were found to contain adulterants, the principal adulter- 

 ating material being petroleum in some of its fractions. When the lower boiling 

 fractions, such as gasoline, were used, tlie specific gravity of turpentine was lighter, 

 and, to counteract this, resin was added. 



9330— No. 3—03 o 



