248 EXPERIMENT STATION RECORD. [Vol.40 



A plan for the development of the village of Grand Canyon, Ariz., F. A. 

 Waugh (U. S. Dept. Agr., Forest Sen:, 1918, pp. 28, fig. 2).— This publication 

 outlines a tentative working plan for the physical growth of the village of 

 Grand Canyon, Ariz., and the development of parks and roads in adjacent 

 territory. 



FORESTRY. 



Notes on North American trees.— II, Carya, C. S. Sargent (Bot. Oaz., 66 

 (1918), No. 8, pp. 229-258). — This is one of a series of papers on the distribu- 

 tion and characteristics of North American trees (E. S. EL, 39, p. 50). In the 

 present paper a conspectus of the Carya species of the United States is given, 

 and some 15 species and a number of varieties and supposed hybrid Carya are 

 described. 



Notes on North American trees.— Ill, Tilia, I-II. C. S. Sargent (Bot. Gaz., 

 66 (1918), Nos. 5, pp. 421-438; 6, pp. 494-511).— A paper similar to the above 

 in which are considered 15 species and a number of varieties of Tilia. A con- 

 spectus of the Tilia species of the United States is included. 



Tree distribution under the Kinkaid Act, 1911 (V. S. Dept. Agr., Forest 

 Serv., 1918, rev. ed., pp. 18, figs. 6).— A revised edition of this document (E. S. 

 R., 36, p. 143.) 



Landscape engineering in the National Forests, F. A. Watch (U. S. Dept. 

 Agr., Forest Serv., 1918, pp. 38, figs. 8).— This document contains practical sug- 

 gestions for National Forest supt.Tvi.sors and rangers relative to the layout of 

 special-use permit areas for summer colonies, the location of trails where 

 serious consideration is given to the beauty of surrounding scenery, and the 

 location and development of ranger stations. 



Forest fires in North Carolina during 1915. 1916, and 1917, and present 

 status of forest fire prevention in North Carolina, J. S. Holmes (.V. ('. (leol. 

 and Econ. Survey, Econ. Paper 48 (1918), pp. 89). — A statistical report on for- 

 est fires during the three years 1915, 191G, and 1917, together with an account of 

 present forest protective activities and Deeded legislation. 



Scientific forestry for Latin America, B. Moore (7'roc. 2. Pan Atner. Sci. 

 Cong., 1915-16, vol. 8, pp. 822-884) .—The author discusses the importance and 

 meaning of forest conservation and when it should be begun ; the relation of 

 forestry to science; cooperation between foresters and botanists; the develop- 

 ment of scientific forestry in the three stages of observations, special studies, 

 and experiment stations ; research in forest products and economics ; and 

 obstacles to be encountered. 



Some problems of re-afforestation, W. Somervii.le (Jour. Roy. Agr. Soc. 

 England, 78 (1917). pp. 51-63). — The author presents notes on a number of 

 conifers that have been tried out on a small scale in Great I'.ri^iin and are 

 believed to be worthy of attention in re-afforesting cut-over lands. 



The forestry museum at Kew, W. Dallimore (Quart. Jour. Forestry, 13 

 (1919), No. 1, pp. 38-40). — A descriptive account of the Museum of British 

 Forestry. 



The forests of Alsace Lorraine, G. Huffel (Rev. Eau.r et Fordts, 56 {1918), 

 No. 12, pp. 265-280). — A statistical ami descriptive account of the forests and 

 forest management in Alsace Lorraine. 



Note on the preparation of turpentine, rosin, and gum. from Boswellia 

 serrata gum-oleo-resin, K. S. PEARSON ami PtTBAfl SlNQH ihhliun Finest /'<<'.. 

 6 (1918), No. 6, pp. 48, pis. 4). — This paper embodies the results of an Inquiry 

 to determine the commercial possibilities of the gum-oleo-resin from /.'. terrata. 

 Parts 1 and 2 deal with the native uses of gum-oleo-rosiu, the distribution of 



