REVIEWS 



A Manual for Northern JVoodsincn. By Austin Gary. Harvard 

 University Press, Cambridge, Mass. Revised edition, 191 8. Pp. 302. 



Gary's handy manual has become a standard part of equipment for 

 survey parties, at least in the Dominion Forestry Branch. With the 

 addition of some thirty-odd pages, it still remains of convenient pocket 

 size. The changes in the new edition are to be found in Part I, an 

 extension of the azimuth of Polaris table, besides a few changes in 

 style ; in Part II, an addition of four pages on western topographic 

 surveying methods with specially graduated tape and clinometer ; in 

 Part I\ , ten pages detailing methods of timber-estimating in Pacific 

 Goast forests; in Part V, some 15 additional tables, mostly volume 

 tables, and a description of the use of the Jjiltmore Stick. 



We would suggest to the author that the usefulness of the volume, 

 now over 300 pages, would be enhanced by an index, especially as 

 the subject-matter is not always to be found where one would look for 

 it, as in the case of the Biltmore Stick, which comes at the end of the 

 tables as a sur])rise, and much that appears under Forest Maps would 

 be looked for under Land Surveying. 



B. E. F. 



JVliitc Pine Blister Rust. Compiled by H. A. Reynolds, Secretary 

 to the Committee on the Suppression of the Pine I51ister Rust in North 

 America. January, 1918. Pp. 40. 



This is a collection of brief reports regarding the condition of the 

 white pine blister-rust problem in the various States, and the work 

 done during 19 17 in scouting and eradication, the reports being made 

 by the officers in charge. 



At the end Dr. Haven Metcalf summarizes the situation (which 

 summary we published in the main in X'ol. X\'. j)]). 1063 flf, and \'ol. 

 X\'I. p. 85 ff). 



Krietly, in the territory west of the Mississippi and in the South mat- 

 ters are not dangerous; in the territory between the Mississipjii and 

 Hudson rivers the situation is "on the whole ho])eful," ( )ntario being 

 the most dangerous element, for here the Xiagara ])eninsula is gener- 



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