86 Forestry Quarterly 



are such that no general substitution is conceivable and that these 

 qualities need only to be aggressively advertised to counteract 

 the trend toward substitution. 



About one-half of the book is given over to a consideration of 

 the uses of lumber and the commercial woods of the United States. 

 Under the first heading, various products which have lumber as 

 their basic raw material are considered, the annual consumption 

 indicated, the essential qualities of the wood suitable for such 

 products are described, and the various species so used, together 

 with the annual consumption of each, is stated. Under the sec- 

 ond heading, the species themselves are considered separately, 

 their properties are briefly mentioned, and in most cases two tables 

 are appended, the first showing the distribution of the cut among 

 various major classes of products, and the second, the specific 

 products manufactured from each species. 



In the other half of the voltmie, Ivmiber is considered in a gen- 

 eral way aside from the specific uses. Although of necessity 

 brief, the author has been able to give an extremely useful survey 

 of the physical properties of wood, of grades and standard sizes, 

 shipping weights, and the seasoning of timber; wood preservation, 

 paints and stains and the fire-proofing of wood are also considered 

 at some length. Recognizing the cursory treatment of most of 

 these subjects, the author devotes special attention to indicating 

 the sources of more detailed information, giving not only a Hst of 

 government pubHcations bearing on the subjects, but also point- 

 ing out the interest taken by lumber manufacturers' associations 

 in suppl5dng information about the woods produced by their 

 members and the ways in which they are prepared to aid the wood- 

 user to secure authoritative information. 



The low price of $1, at which the book sells, is made possible by 

 the use of a low grade paper and plain but substantial binding. 

 This is in keeping with the object of the publication, which is 

 frankly the advertisement of lumber, and for which purpose a 

 wide distribution is desirable. 



W. N. M. 



Recent Results Obtained from the Preservative Treatment oj 

 Telephone Poles. By F. L. Rhodes and R. F. Hosford. Pre- 

 sented at the 314th meeting of the American Institute of Electrical 

 Engineers, St. Louis, Mo., October 19, 1915. Pp. 44. 



