FORESTRY. 49 



efficient and economical spraying of shade trees, based upon work which has 

 I>een done along this line in Massachusetts. 



A new type of spray nozzle, G. E. Stone (Massachusetts Sta. Rpt. 1910, 

 pt. 2, pp. 69-71, fig. 1). — A type of nozzle, which has proved to be very satis- 

 factory in spraying large trees from a high pressure machine, is illustrated 

 and described. 



FORESTRY. 



The cost of gTOwing timber, R. S. Kellogg and E. A. Ziegleb (Chicago, 

 1911, pp. IS). — The jiurpose of this paper is to outline a method of investigation 

 into the cost of growing timber. Cost tables, based on data secured in some 

 cases from actual stands and in others from extensive growth studies and 

 timber estimates, are given for stands of white pine, loblolly pine, longleaf 

 pine, red oalj, and Douglas fir. The appendix also contains cost tables showing 

 the charges for land and stocking, taxes, and administration and protection, 

 by decades from 30 to 100 years at various rates of interest. 



The authors conclude that; because of the long investments required the cost 

 of growing timber becomes unreasonable when high rates of interest are de- 

 manded, and that unless private capital is willing to engage in it for an in- 

 come of from 4 to 5 per cent, the country must look to the state or national 

 governments to grow the future timber supply. 



Practical forestry in the Pacific Northwest, E, T. Allen (Portland, Oreg., 

 1911, pp. 1.30). — This work deals with the protection of existing forests and the 

 growing of new ones from the standpoint of the public and that of the lumber- 

 man. An outline of technical methods is included. 



A statistical review of the forest administration of the Grand Duchy of 

 Baden for the year 1909 (Statis. Nachiv. For.stverio. Baden, 32 (1909), pp. 

 XXI -{-151, dgms. 11). — A statistical review for the year 1909 similar in char- 

 acter to the reports of previous years (E. S. R., 24, p. 44). Comparative data 

 are given showing the financial returns from the crown forests for the previous 

 42 years. 



A statistical review of forest conditions in Wurttemberg for the year 1909 

 ( Forststatis. Mitt. Wdrttemherg, 28 (1909), pp. 98). — A statistical review of 

 forest areas in the various districts of Wiirttemberg, yields of major and minor 

 forest products, public sales by classes of woods, silvicultural operations, road 

 building, labor conditions, and financial returns. A comparative table is given 

 showing the financial returns from the state forest and hunting administration 

 for the last 57 years. An appendix contains data relative to forest offenses and 

 the area of state and corporation forests in the different districts. 



Notes on experimental tree planting in southern Rhodesia, W, E. Dowsett 

 (So. African Jour. Sci., 8 (1911), No. 2, pp. 60-66). — A brief report on work 

 carried out in the Rhodes Matoppo Park during the last 7 years. Xotes are 

 given on the behavior of tree species secured from various countries, together 

 with brief descriptions of a number of indigenous trees. 



A forest flora of Chota Nagpur, including Gangpur and the Santal-Par- 

 ganahs, H. H. Haines (Calcutta, 1910, pp. VI-\-63Jt-\-XXXVII, map i).— This 

 comprises a systematic classification and descriptions of all the indigenous 

 trees, shrubs, and climbers, together with the principal economic herbs and the 

 most commonly cultivated trees and shrubs in the above regions. 



Experiments with Scots pine seed from various sources, W. Somekville 

 (Quart. Jour. Forestry, 5 (1911), No. 4, pp. 303-312, pi. 1). — Cooperative ex- 

 periments are being conducted in Great Britain and in various countries on the 

 European continent to determine the relative value of Scots pine seeds secured 



