844 EXPERIMENT STATION EECOED. 



The results in general indicate that the danger of windfall is little affected 

 by exposure or topography, except in the case of very steep exposed localities. 

 Tall dominant trees with well-formed crowns are more liable to be wind-thrown 

 than others. Much of the windfall among the shorter trees is due to opening 

 up the stand or a disturbance of root systems by the falling of the larger trees. 



A calendar of the leafing-, flowering, and seeding of the common trees of 

 the eastern United States, G. N. Lamb {Mo. Weather Rev. Sup. 2 {1915), pp. 

 5-19, figs. 4). — The preliminary chart or calendar here given has been formulated 

 from data on the flowering, leafing, seed ripening, seed falling, and leaf falling of 

 the common trees, which have been collected for a number of years, both by 

 observers under the direction of the Forest Service and by individuals working 

 alone. 



The calendar includes some 72 species. In view of the lack of uniformity 

 and incompleteness of observations in many cases, the chart is tentative in 

 nature, but it is believed it will serve as a general guide to the seasonal func- 

 tions of the different species. The use of the chart is explained and directions 

 are given for making phenological observations, together with brief descriptions 

 of the general range of each species. 



A bibliography of literature used in compiling the chart is included. 



The progress of wood identification in the Philippine Islands, E. E. 

 Schneider {Forestry Quart, 13 {1915), No. 3, pp. 325-332).— A short review 

 of investigations having to do with the identification of Philippine woods. 



See data on some secondary tree species, E. A. Ziegler {Forestry Quart., 

 13 {1915), No. 3, pp. 361-364). — Data are given on some seed experiments carried 

 on by A. B. Wells in the Pennsylvania State Forest Academy nursery in 1910 

 and 1911. 



The maximum growth of Japanese timber species, S. Honda {Jour. Col. 

 Agr. Imp. Univ. Tokyo, 6 {1915), No. 1, pp. 1-6, pis. 4). — A list is given of 

 Japanese trees according to their size and the largest existing specimen trees, 

 together with tabular data showing the average maximum growth of some 49 

 species. 



Loblolly or North Carolina pine, W. W. Ashe {N. C. Geol. and Econ. Survey 

 Bui. 24 {1915), pp. XVI -{-169, pis 21, figs. 5).— A report on the loblolly or North 

 Carolina pine {Pinus tceda), prepared under the direction of the North Carolina 

 Geological and Economic Survey in cooperation with the Forest Service of the 

 U, S. Department of Agriculture, with reference to its use by landowners, 

 lumbermen, and others interested in timber. 



The subject matter is presented under the following general headings : The 

 tree and how to identify it, economic status of loblolly pine, physiography of 

 the Coastal Plain and Piedmont Plateau regions, commercial distribution, asso- 

 ciated species, forest characteristics, silvical requirements, the wood and its 

 uses, commercial use for turpentine, growth, volume tables, graded volume 

 tables, increase in the value of the trees, and management. Under forest 

 management is taken up the determination of the best age at which to cut for 

 saw timber or cordwood in order to utilize most profitably the forest crop. 

 The best methods of cutting in order that the forests may be perpetuated are 

 discussed for the different types. Protection from fire, especially for the 

 young growth, is advocated and the advisability of artificial restocking by seed- 

 ing or planting is considered. 



Accompanying the text are over 80 tables presenting data on various phases 

 of the subject. 



Longleaf pine distinguished visually from loblolly .or shortleaf, A. 

 Koehleb {Engin. Rec., 12 {1915), No. 11, pp. 319, 320, figs. 5).— A detailed study 

 of the wood of longleaf, loblolly, and shortleaf pines, recently made at the 



