FOEESTRY. 241 



FORESTRY. 



Key to New England trees, J. F. Collins nnd H. W. Preston {Providence, 

 li. I., 11)09, pp. .'12). — This pnniplilot consists of a key to the wihi and commonly 

 cultivated trees of New England, including some of the trees which grow in 

 adjacent States. The key is based primarily on leaf characters. Directions 

 are given for its use. together with references to more complete worlds on the 

 subject. 



The tree book, Mary R. Jarvis CSew York and London \U}()9}, 2. cd. rev., 

 pp. 132, pis. 31). — Popular discussions together with the distinguishing charac- 

 teristics and illustrations are given of a large number of the more common 

 P>ritisli trees. 



The adaptability of Douglas spruce (Pseudotsuga taxifolia), A. Jolye't 

 {Rev. Eaujp ct Forcts, //S (1909), A^o. 11, pp. 321-331, maps 2). — A discussion of 

 the comparative adaptability of the Pacific coast and Colorado forms of the 

 Douglas spruce to different European conditions. 



The culture of forest trees {Die PflanzcnzueJit im Waldc. Berlin, 1907, 

 4 ed., rev. and enl., pp. XII +383, figs. 66). — This is a handbook for foresters 

 and students. It treats in detail of the culture of young forest trees including 

 seed bed and nursery practices, packing and shipping. Special rules are given 

 for the culture of various species of conifers and hard woods. 



A primer of forestry, II, G. Pinchot {U. 8. Dcpt. A</r.. Farmers' Bui. 

 35S, pp. -is, flgs. 2o). — This is a popularized edition of part 2 of Bulletin 24 of 

 the Forest Service of this Department (E. S. R., 17. p. 43). I'art 1 of the above 

 publication has also been issued as a Farmers' Bulletin (E. S. R., 15, p. 158). 



A manual for northern woodsmen, A. Cary {Cambridge, Mass., 1909, pp.250, 

 figs. 80, maps 3). — This pocket manual treats in detail of land surveying, the 

 making of forest maps, log and wood measurement, and timber estimating. 

 Numerous tables relating to these subjects, together with miscellaneous tables 

 and information, are also given. Various text-books and other publications 

 have been drawn on in preparing the work, but the sections on the practice of 

 map making and timber estimating are largely derived from the author's per- 

 sonal experience and observation. 



Timber production and the industrial properties of wood, E. Laris 

 {RoJiIiolzgeirininntg uiid GewerbseigenscJiaftcn des Ilolzes. Vicn)ia and Leipsic, 

 1909, pp. 18.'t, figs. 37). — A small manual for lumbermen and wood workers. 



Part 1 deals with the exploitation and shaping of timber for building pur- 

 poses and other uses. Part 2 discusses the various industrial properties of 

 woods, including the interior and exterior development of wood cells, change 

 in shape after felling and working, specific weight, hardness and cleavage re- 

 sistance, strength of various species, color, texture and knot formation, dura- 

 bility under natural conditions aud with the use of preservatives, defects and 

 diseases, exterior and interior means for determining the condition of sound- 

 ness, the characteristics of deadwood, and the heating power of woods. 



Preliminary statement regarding the forestry problems in Vermont, A. F. 

 Hawes {Vermont Sta. Bui. 139, pp. 23-36, pi. 1). — This bulletin, which is Forest 

 Service Publication No. 1 of the Vermont Station, contains a brief discussion of 

 the purposes and objects of forestry, outlines the work of the State forester's 

 office, and gives instructions regarding forest planting. 



State parks for Wisconsin, J. Nolen {[Madison, Wis., 1909], pp. 56, pis. 

 .'13). — This is the report of the landscape architect to the Wisconsin State Park 

 Board discussing the justification and need of State parks for Wisconsin, and 

 the requirements and available sites for these parks, and giving recommenda- 

 tions for the establishment of a park system. 



