626 Forestry Quarterly. 



Dr. V. Lorenz reports on an experiment of 

 Fertiliser 7 years duration on 10 areas to find out 



in whetlier the substitution of a commercial 



Forest fertilizer (Thomas slag, Chili saltpetre and 



Production. potash salts), as much as could be pur- 



chased for the amount which was secured 

 from the sale of litter in a rather dry pine forest (Vienna Forest), 

 70 years old, namely $6.00, would compensate for the loss of the 

 litter by increased wood production. 



There was an actual increase of from 175 to 250 cubic feet on 

 the area involved, but the money returns were such as to leave 

 an annual deficit of about 20 cents per acre per year. 



The deduction is that, at least on dry soils, fertilizers do not 

 pay. 



Bin Dungungs versuch in Schwarzfdhren-Stangenhols. Mitteilungen aus 

 dem forstlichen Versuchswesen Oesterreichs. Heft XVI, 1911. 



Experiments reported by Gunnar Schotte 

 Seed show that the age of seed trees of pine do 



Supply. not appear to influence the progeny appre- 



ciably. 

 From the extensive tabulated results with seeds of different 

 derivation it is again proved that seeds from northern localities 

 furnish generally smaller plants than from southern. Their 

 annual shoots are shorter, as well as their branches, hence the 

 habitus is a more slender, narrow one. The needles of the north- 

 ern stock are generally shorter, but a little broader, and more yel- 

 low in winter ; the bark somewhat lighter than those of the plants 

 from southern Sweden. 



Uebef die Provenienzfrage und das Alter des Mutterbauines bei Kief em 

 Kultur. Mitteilungen aus der forstlichen Versuchsanstalt Schwedens. 

 Heft 7, 1911. 



An anonymous G. Z. pointing out that in 



Selection Switzerland private forests, mostly in small 



Method holdings, are not managed as they should 



for be, and that increase in production is highly 



Private desirable, advocates for this purpose the 



Forest. selection forest method. 



His arguments consider the soil, the 



stand, the conditions of the owner and requirements of political 



economy. 



