332 Forestry Quarterly. 



and consequent loss of substance due to respiration of the seed. 

 Such respiration must also be a cause of deterioration when the 

 respiration is active under admission of air. Yet storage in car- 

 bonic acid did not appear to produce advantageous results. 



The importance and financial value of these findings as to proper 

 storage may be understood when it is stated that the price of 70 to 

 75 per cent, seed was in 1906 4 marks ; in 1907, 7 mk. ; in 1908, 

 11 mk. ; in 1909, 9.5 mk, and that from two to three times as many 

 plants result from seed kept airtight for 3 years, as from the seed 

 kept in open air. 



The best place to keep seed is an ice-cellar (cold storage) ; next, 

 a deep, cool cellar, the seed dried to a loss of 1 to 2 per cent, of its 

 weight, being enclosed in dried-out, corked and sealed bottles, or 

 in zinked receptacles, possibly with a little unslaked lime enclosed. 



Der Kicfernsamc. Zeitschrift fur Forst-u. Jagdwesen. June, 1909, 

 PP- 353-381. 



That mixed forest is superior to pure forest 



Mixed is a dogma accepted without exact investiga- 



or tion. The difficulty of such investigation has 



Pure postponed its being undertaken, but now, 



Forest? since 1905, Dr. Schwappach has instituted 



some twenty sample plots for the purpose, 



and, while so far mainly the methods may be discussed, there are 



already results noted which throw light on the question. 



The object of the investigations are to be: (a) determining the 

 rate of growth of mixed as compared with pure stands; (b) de- 

 termining the influence of mixed stands on soil conditions; (c) 

 experiments into the most suitable methods of establishing and 

 managing mixed forest. The sample plots, located in East Prussia 

 and Silesia, comprise three general types, namely, (1) mixtures of 

 pine and spruce; (2) mixtures of larch with pine and spruce; 

 (3) spruce and fir with pine, and with beech. 



The following samples from the published tabulations will illus- 

 trate the manner of record : 



