FORESTRY. 748 



The perpetual flowering carnation and how to grow It indoors and out-of- 

 doors, E. J. WooTTEN {London, 1914, PP- 55, pis. 13). — A popular treatise ou the 

 culture of carnations under glass and In tlie open, Including also information 

 relative to hybridization and raising from seed and diseases and their treat- 

 ment. A monthly calendar of operations is also given. 



Growing bulbs for winter and spring blooming, M. Fuld (New York, 1914, 

 pp. 78). — A popular treatise on bulb culture both indoors and in the open, In- 

 cluding also a descriptive list of the more important ornamental bulbs. 



The small rock garden, E. H. Jenkins (London and New York, 1913, pp. 

 XII-\-130, pi. 1, figs. 52). — ^A popular treatise on the construction of rock gar- 

 dens, including lists of plants suitable for all purposes and seasons, together 

 with cultural details. 



Gardens in the making, W. H. Godfret (London, 1914, PP- XVII+207, figs. 

 63). — ^A popular treatise ou garden design in which the important problems 

 considered are the layout and general effect of the garden and the proper rela- 

 tionship of all parts of the garden to the whole. The text is accompanied by a 

 number of garden plans. 



FORESTRY. 



The timbers of British Guiana, H. Stone and W. G. Freeman (London, 

 1914, PP- XI -{-110, pi. 1). — The present report contains a descriptive account of 

 the wood of a large number of .species of trees collected in British Guiana under 

 the direction of A. G. Bell. Each wood is treated with reference to its nomen- 

 clature, salient features, physical characters, bark, uses, qualities, etc. 



Studies on the periodicity of the life processes of trees native to con- 

 tinually humid tropical districts, S. V. Simon (.Jakrb. Wiss. Bot. [Pringsheim'], 

 54 (1914), ^Q. 1, pp. 11-181). — The author here reports observations and investi- 

 gations on the life history of a large number of Javenese tree species. The 

 literature of the subject Is reviewed and a bibliography appended. 



The genus Pinus, G. R. Shaw (Pubs. Arnold Arboretum, No. 5 (1914), pp- 96, 

 figs. 832). — In part 1 of this work the author discusses the characters of the 

 genus Pinus with special reference to their taxonomic significance and their 

 utility for determining the limits of the species. In part 2 a classification of 

 the species is given which is based on the gradual evolution of cone structure. 



The relation of crown space to the volume of present and future stands of 

 western yellow pine, G. A. Bright (Forestry Quart., 12 (1914), ^0. 3, pp. 330- 

 34O). — A preliminary study of yellow pine stands with special reference to the 

 relation between stand density and wood volume. 



Volume table for lodgepole pine, A. T. Upson (Forestry Quart., 12 (1914), 

 No. 3, pp. 319-329). — The author here presents and discusses a volume table for 

 lodgepole pine which was compiled from measurements secured on some 2,015 

 trees on the Arapaho Forest, Colorado. 



Relative resistance of various conifers to injection with creosote, C. H. 

 Teesdale (U. S. Dept. Agr. Bui. 101 (1914), pp. 43, pis. 8, figs. 9).— The author 

 here reports creosote penetration tests conducted with various species of coni- 

 fers at the Forest Products Laboratory maintained by the Forest Service In 

 cooperation with the University of Wisconsin. Introductoiy considerations 

 have to do briefly with the gross and microscopic structure of coniferous woods 

 and the experimental methods employed. The results of the tests nra presented 

 in a series of graphic curves and tables and fully discussed. 



Turpentine possibilities on the Pacific coast, C. S. Smith (Proo. Soc. Amer, 

 Foresters, 9 (1914), No. 3, pp. 527-55S).—- Th© author here briefly summarizes 



