868 EXPERIMENT STATION RECORD. 



Society for Horticultural Science (Amer. Florist. 26 (1906). No. 924, PP- 



147-149). Somewhat extended abstracts are given of the papers presented at 



the annual meeting of the society held in New Orleans, December 29, an account 

 of which has been given (E. S. It.. IT. p. 616). 



FORESTRY. 



The forester, J. Nisbet (Edinburgh and London: William Blackwood & Sons, 

 1905, vols. 1. pp. XX+506; 2, pp. XV+642, figs. 285). — These two volumes are 

 based on the sixth edition of The Forester, issued in 1894, and are intended to 

 serve as a text-book of British forestry and arboriculture. The 3 chapters, 

 into which part 1 is divided, treat in a general way of the history of forestry 

 in Great Britain, the present condition of the woodlands, technical forestry 

 education, and the economic importance of forestry. Part 2, consisting of 2 

 chapters, is devoted to British sylva ; and part 3, made up of 7 chapters, to 

 sylviculture. 



Wood, J. Beauverie (Le Bois. Paris: Gauthier-Villars, 1905, vols. 1. pp. 

 XII+1-704; J. i>i>. 705-1402, pis. 16, figs. 485).— This work treats of the struc- 

 ture and qualities of timber, the composition and chemical properties and The 

 general character and physical properties of wood, forests, lumbering, timber 

 trade, defects in timber due to faulty methods of growth and to fungus, insect 

 and other animal enemies, preservation of wood, wood essences, such as resin, 

 native or naturalized woods, cork, wood production of the world, woods of the 

 French colonies, and the utilization of wood. 



The lumber industry (Tradesman, 54 (1906), No. .9, p. 94). — Statistics are 

 given showing the States in which timber land is owned by lumbermen, capital 

 invested, and number of acres. The average quantity of merchantable timber 

 per acre and the estimated quantity of merchantable timber in feet are also 

 given. 



Evergreens; how to grow them, C. S. Harrison (tit. Paul, Minn.: Webb 

 Pub. Co.. 1906, pp. VI-\-95, figs. 19). — Popular directions for growing evergreens 

 in the prairie States. 



Artificial fertilizers in forestry, Henze (Deut. Landw. Presae, 32 (1905), 

 No. 94, pp. 783-785, figs. 9). — Data with illustrations are given showing the 

 much more rapid growth of seedling forest trees with than without fertilizers. 



Plan for the manuring of forests, Schwappach (Ztschr. Forst u. Jagdw., 

 38 (1906), No. 1. pp. 4^-52). — An extensive plan is given by which different 

 green manures and fertilizers may be tested comparatively for forests. 



The water content of diluvial forest soils, E. Ramann (Ztschr. Forst u. 

 Jagdw., 38 (1906), No. 1. pp. 13-38). — An account of extensive experiments on 

 forests and cut-over areas to determine the water content of such soils and the 

 i'\'U'et on water content of different methods of cultivation. The experiments 

 were carried out in 1894—5, and the details are given at length in tabular form. 

 Among the most important conclusions are the following: 



Under otherwise like conditions the water content in soils heavily timbered 

 is less than in the soils of cut-over areas. Water content is only one of the 

 important factors in tree development. Soils with like water content may be very 

 different and soils with a very different water content may belong to the same 

 yield class. Cultivation of sandy soils increases the water content considerably. 

 The influence of cultivation is felt only over the cultivated areas. Neighboring 

 areas show no noticeable change. The surface layer prominently influences the 

 water content of sandy soils. This is particularly true of the humus layer on 



