FOKESTRY. 151 



A treatise on the commercial uses of wood, A. Mathey (Traits d'Exploita- 

 tioii Voininerciale des Bois. Paris, 1906, vol 1, pp. XVIII+492, pis. 8, figs. 377; 

 1908, vol. 2, pp. XV+8S5. figs. 429). — Volume 1 of this work, which was pub- 

 lished in 1906, treats of the properties and qualities of wood, conservation, 

 storaije, and preservative treatment, methods of exploitation, and transportation. 



The present vohune contains a detailed account of the uses of wood in various 

 conunercial industries, including its use for fuel and for the manufacture of 

 charccal, paper and liber, the industries using small sizes of wood, round, un- 

 Itarkec, and square timber, girders, railroad ties, sawed and cleft wood, various 

 small forestry industries, and many other general uses to which wood is put, 

 together with accessory products such as tannin, resin, dyes, wood alcohol, etc. 



The arboretum of the National School of Streams and Forests, A. Jolyet 

 (A'cc. Eai(.r ct Forets, 4" (1908), No. 3, pp. 70-79). — The arboretum is briefly 

 descril)ed and a list is given of the species under observation showing their 

 (►rigin. together with notes on the hardiness of several exotic species. 



The evergreen trees of Colorado, R. O. Longyear (Colorado 8ta. Bui. 130, 

 lip. 3-32, figs. 26). — This bulletin is presented with the view of familiarizing the 

 ]ieople of Colorado with the native evergreens of that State and of strengthening 

 the interest in their protection. Keys and descriptions of the Colorado genera 

 and species of evergreens are given, together with suggestions and directions for 

 their use as ornamentals, wind-breaks and screens. The descriptions are accom- 

 Iianied by a series of plates showing the distinguishing characteristics of the 

 various species. Of the 13 evergreens occurring in Colo^-ado which grow to the 

 stature of trees 10 belong in the i»ine family. 



Notes on the bamboos of Indo-China, Crevost (Bid. Econ. Indo-Cltinr, n. 

 scr., 10 (1907), Xo. 6'6', pp. 872-893. figs. .'/). — In these notes a general account is 

 given of the various forms of bamboos growing in Indo-China, including their 

 characteristics, range, habitat, and methods of propagation, with descriptive 

 notes by the author and others of the various species and their uses. The local 

 names only are given in most cases, owing to the imperfect botanical classifica- 

 tion of the bamboos. 



The chestnut tree, J. B. Laviaixe ( Lc Chataignier. I'aris. 1906. pp. 111+286, 

 pi. I, figs. 11). — Part 1 of this work treats of the botanical and historic.il classi- 

 lication and description of the chestnut genera and principal species, together 

 witli a historical and Iwtanical study of the common and improved varieties of 

 chestnut trees. Succeeding portions deal with the culture and exploitation of 

 chestnut groves, utilization ol the wood and other products, the use of the chest- 

 nut in ornamental horticulture, revenues, from chestnut groves, enumeration of 

 the flora occurring in chestnut groves, insect pests, diseases, and their remedies. 



Karite, argan, and some other African sapotaceous trees possessing fatty 

 seeds, E. Perrot and A. Chevalier (Vcg. Utiles Afriquc Trap. Fnnir.. 1907. \<>. 

 2, pp. 19.'i, figs. 32, map j.). — A botanical, scientiflc, and economic study of the 

 karite tree iBHtyrospcrmuw, parkii), the argan tree (Argania slderoj-gloii), and 

 other less known African trees of the sapotaceous family possessing fatt.v seeds. 

 The work consists of extracts from numerous contributions on this subject, 

 together with the scientific observations and botanical investigations of the 

 authors. 



Special attention is given to the karite, which abounds in Central Africa. 

 The fruit of this tree yields a butter-like substance which is eaten extensively 

 by the natives and also imported to Europe in considerable quantities under the 

 name of shea-butter and used in the manufacture of soap. Although the coagu- 

 lated gum is nearly identical in its appearance with gutta-percha, the conclu- 

 sion is reached that it is of uo economic value as a substitute. The argan, 



