24() JOURNAL OP" FORESTRY 



no doubt it ought to be in the interest of this ^Association to agitate for the 

 intended State inventory of Sweden's forests to be made at once. And in the 

 planning of this inventory, the representatives of the pulp industry surely have 

 some interests to guard. For instance, that the results of estimates are summed 

 up for properly restricted districts of consumption, that such trees are specified 

 which can serve as raw material to the pulp industry, etc. 



"And of all the measures which bear upon the future there is hardly one more 

 important than that spruce, the specialty of the pulp industry, in the provision 

 for regrowth of our woods will get the proper attention it deserves. As it is 

 only very lately tliat spruce has reached the same value' as pine, the impression 

 commonly prevails that spruce must needs be of less value than pine. 



"When a woods is clear cut, only seed trees of pine are left, because spruce 

 trees will blow down or dry out if left standing free, and when sowing mixed 

 spruce and pine, which is mostly the practice, it will be the pine, growing rapidly 

 in its youth, that will be the dominating tree. In other words, the pine has many 

 possibilities at present to be favored at the cost of the spruce. And nevertheless 

 there can be no doubt that the spruce, even on account of the cellulose industry, is 

 the tree of the future, which will be of the highest value. When, in addition, 

 spruce on the better soil gives quantitatively greater production than pine, it is 

 time now to restrict the cultivation of pine to the proper pine grounds ; that is, 

 such soil where the spruce does not attain its full development." 



The author also warns of the approval of a critical period "when the 

 wood- felling cannot be continued at the present rate," and advises his 

 hearers to "undertake at once all the measures which might better 

 answer the demands of the mills for raw materials." 



A. B. R. 



Svensk Pappers Tidning, Stockholm, February 15 and 28, 1917, pp. 28 and 34 

 respectively. 



The prevailing high prices for alcohol have 

 Alcohol served to direct a great deal of attention to the 



from practicability of utilizing waste sulphite liquor 



Sulphite Liquor from pulp mills in the production of ethyl alcohol. 

 An article by Dr. Erik Haegglung, technical di- 

 rector of the sulphite alcohol plant at Bergvik, Sweden, giving details 

 of methods and processes involved in such utilization, has recently been 

 translated from the German by O. F. Bryant, of the Forest Products 

 Laboratory of Canada. According to Haegglund, the real source of 

 the fermentable sugar in the waste liquors is rather obscure. At the 

 most, I per cent of the cellulose of the wood is possibly converted into 

 sugar, and there is some doubt whether any cellulose is actually con- 

 verted into sugar. Yet under favorable conditions the fermentable 

 sugars in waste liquors amount to 14 per cent. Investigations have 



