448 . EXPERIMENT STATION RECORD. 



The landscape gardening- book, Grace Tahor (Xcw York, 1911, pp. 180, 

 pis. 63, fujfs. 13). — In this iiopular Avork the avowed aim is to set down the 

 simple laws of beauty and utility which should guide in the development of all 

 grounds. 



The successive chapters discuss utilizing natural features, the style of a 

 garden, getting into a place, vines as harmonizers, vistas good and bad, 

 boundaries, entrances and gateways, deciduous trees, evergreen trees, the 

 use of shrubs, the place of flowers, winter and the garden, the vegetable garden 

 beautiful, garden structures, garden furniture and accessories, and planting 

 and general care. 



Town planting and the trees, shrubs, herbaceous and other plants that 

 are best adapted for resisting smoke, A. D. Webster {London and New York, 

 [1910], pp. 211, pis. 16). — The cultural directions, together with lists of plants, 

 given in this book are based upon the author's experience in caring for the 

 grounds of many public buildings in several of the worst smoke-infested parts 

 of London. 



FORESTEY. 



Schlich's manual of foresti-y. — III, Forest management, W. Schlich (Lon- 

 don, 1911, vol. 3, Jf. ed. rei-., pp. X+.'i03, figs. .59). — A treatise on forest manage- 

 ment which is divided iuto the following general parts: Forest mensuration, 

 forest valuation, the foundations of forest management, and preparation of for- 

 est working plans. 



The successive chapters in part 1 discuss instruments used in forest men- 

 suration, measurement of felled and standing trees, determination of the volume 

 of whole woods, the age of trees and woods, and determination of the incre- 

 ment. Part 2 discusses matters preliminary to forest valuation, valuation of 

 forest soil, of the growing stock, and of the whole woods or forests, deter- 

 mination of the rental of forests, and the financial results of forestry. Part 

 3 treats in detail of the increment, the rotation, the normal age classes, the 

 normal growing stock, the normal yield, and relations between increment, 

 growing stock, and yield. The discussion on the preparation of forest working 

 plans in part 4 takes up the collection of statistics, division and allotment of 

 the forest area, determination of the method of treatment, determination and 

 regulation of yield, control of execution, and renewal of working plans. 



Several appendixes are given containing tables and data of use in forest 

 management. 



New view points in silviculture, K. ZoN (Forestry Quart., 9 (1911), No. 2, 

 pp. 205-218). — A review of H. Mayr's last book on silviculture (E. S. R., 20, p. 

 943) with special reference to the discussion of climatic factors determining 

 the existence of forest regions. On the basis of the average temperature, air 

 humidity, and precipitation during the vegetative period, as well as on the 

 basis of the annual temperature, the dates of occurrence of the first and last 

 frost, and the absolute minimum temperature, Mayr established several forest 

 regions or zones for Europe, America, and Asia, each zone being characterized 

 by tree species having about the same climatic requirements. The different 

 zones are here arranged in tabular form for ready comparison. 



Forestry and the lumber business, J. E. Rhodes (Forestry Quart., 9 

 (1911), No. 2, pp. 195-20J!t). — The author points out the direction which the 

 development of forestry in this country should take to be of assistance to the 

 lumber business as a whole. 



The importance of the seed source question for the breeding of healthy 

 plants in forestry, Herrmann (Vortriif/c Pflanzenschutz, AM. Pftanzenlcrank. 

 Kaiser Wilhelms Inst. Landw. Bromherg, 1911, No. 2, pp. 1-22, fig. 1). — A 



