Periodical Literature 171 



besides, make an active campaign for new work, educating pri- 

 vate forest owners to an appreciation of the needs of their forests 

 and of the use they can make of the aid the state offers. 



A closer consideration of the work of the Provincial Boards of 

 Agriculture in the way of furthering private forestry has since 

 appeared from Dr. Schwappach's pen. In nearly all parts of the 

 kingdom some advantage has been taken of the opportunity 

 offered these boards to extend their efforts into the realm of 

 forestry, the lengths to which they have gone differing widely, 

 and the directions in which the greatest advances have been 

 made varying according to the needs of the various provinces. 

 The best results are only there attained where the board goes far 

 enough to retain for its work the services of technically trained 

 men who devote their entire time to this work and ceases to de- 

 pend on the gratuitous aid given by state forest managers, whose 

 first duty remains to care for their own reviers. As regards the 

 extent to which advice should go it is clear this should be as 

 continuous and persistent as possible. A good start is useful 

 only when followed by persistent effort, maintaining the man- 

 agement at the same level at which the work was initiated. 



Wie ist der Privatwaldbesiiz zu erhalten? (Salisch) (with discussion 

 and resolutions adopted). Jahrbuch des Schlesischen Forstvereins fiir 

 1905. Pp. 92-129 ; 180-191. 



Die Bedeutung der LandwirtscFiaftskaminern fur die Privatforstwirt- 

 schaft. Zeitschrift fiir Forst- utid Jagdwesen, September, 1905 pp. 557- 

 567. 



Continuing the well known work of v. 

 Prussian Hagen and Donner, the Prussian forest 



Statistics department has published an account of 



the progress of its administration to the 

 year 1903, in a series of tabular statements, which exhibit most 

 interesting changes. Comparing with the year 1868, 35 years 

 ago, it is shown that the State forest area has increased 8.8% 

 and the wooded part {yiiitzbare Fldche) 9.5%. The cut per acre 

 has nearly doubled, namely from 2.86 fni. per ha. (40.3 cu. ft. 

 per a.) to 4.92 fm. (69.4 cu. ft.) and the timberwood cut has 

 more than doubled (from 2.05 to 4.14 fm), the workwood form- 

 ing 63 percent of the timber wood as against 29 per cent in 1868. 

 While in 1868 the gross yield was 10.4 million dollars, and 

 the net yield 5.2 million, in 1903 both figures are far more 

 than doubled, namely to 26.4 and 13.2, so that the net yield at 



