950 EXPERIMENT STATION RECORD. 



tralasia. The system of classification as here presented is based upon a study 

 of the anatomical structure of the stem, exclusive of the structui'e of the pith 

 and the bark, and has been prepared with the view of meeting the needs of the 

 scientific botanist in prosecuting researches either in recent or fossil forms, as 

 well as for its adaptation to the requirements of the practical engineer and 

 forester. 



Part 1 deals primarily with the anatomy of the stem. General directions are 

 given in the first chapter for the preparation of material and the value of 

 particular sections. Subsequent chapters deal with the growth ring, tracheids, 

 bordered pits, medullary rays, wood parenchyma, resin passages, and general 

 phylogeny. Chapters are also devoted to the durability of woods and their 

 preservation as fossils, and the mode of action and effects of decay. Part 2 is 

 a synopsis of genera for the cordaitales, gingkoales, and coniferales, based on 

 the details worked out in part 1. In appendices A and B are given tables of 

 anatomical data and volume tables of tracheids and thickness of walls in 

 various trees. 



The text is accompanied with an extensive bibliography and numerous figures 

 illustrating transverse, radial, and tangential sections studied. 



The principal timbers of New South Wales and their uses, R. D. Hay 

 (Sydnci/, 11)06, 2. cd., pp. 25, pis. /'/). — This pamphlet is compiled from various 

 reports on the timbers of New South Wales and is intended to give information 

 in regai-d to these timbers and their uses. 



The principal timbers are classified and described and extracts are given 

 from reports on their adaptability for wood paving, wharfage and harbor work 

 and railway construction, together with a summary of the results and con- 

 clusions on the strength and elasticity of New South Wales timbers as derived 

 from experiments made by W. H. Warren. 



The red mahLOgany (Eucalyptus resinifera), F. Albert (La Caoha Roja o 

 Eucalyptus Resinifera. Santiago cle Chile: Govt., 1907, pp. 34, flffs. 11). — ^A 

 monograph on this species of the eucalypt, including its origin, common names 

 and synonyms, botanical description, the timber and its uses, climatic and soil 

 requirements, cultural range, methods of propagation and planting, sylvicul- 

 tural management, and exploitation. 



Forest soil, A. Gregoire {Bui. Soc. Cent. Forest. Belg., 14 (1907), No. 7, pp. 

 380-397, figs. 2; abs. in Ann. GemUoux, 17 (1907), No. 10, pp. 576-578 ) .—This 

 is a brief critical review from the standpoint of the forester of present agro- 

 iogical knowledge. 



Consumption of poles in 1906 ( U. 8. Dept. Agr., Forest Serv. Circ. 137, pp. 

 9). — Statistical data collected and compiled by the Bureau of the Census in 

 conjunction with the Forest Service are given, showing the consumption of 

 poles during 1900 as based upon the number of poles purchased during the 

 year. Returns from over 6,000 telegraph and telephone companies, electric 

 light, power, and trolley systems, etc., give a total of 3,574,666 poles, valued 

 at $9,471,171 at the point of purchase. Poles shorter than 20 ft. were not in- 

 cluded in the estimate. 



The tabulated data show the length, number, and value of round and sawed 

 poles purchased in 1906, together with the number purchased by various classes 

 of consumers. Cedar and chestnut are the two principal species used. Owing 

 to the increased cost of poles and the difiiculty of securing a sufficient quantity 

 of satisfactory stock the preservative treatment is being more genei'ally used. 



Tests of vehicle and implement woods, H. B. Holroyd and H. S. Betts 

 (U. S. Dept. Agr., Forest Serv. Circ. lJi2, pp. 29, figs. 15). — The results are 

 given of tests conducted at Lafayette, Indiana, in cooperation with Purdue 

 University, to obtain a better knowledge of the mechanical properties of the 



