942 JOURNAL OF FORESTRY 



through without a hitch at standard high speed (24,000 revokitions an 

 hour). A conservative estimate from authoritative sources states that 

 of the 6,000 tons of newspaper consumed in the United States every 

 day at least 1,500 tons could be retrieved in the larger cities alone with- 

 out organized effort. It is said that Dr. Jesperson is going immediately 

 into the manufacture of the paper, and that the product may be on the 

 market in a short time. 



The water in the copper mines in Butte contains a considerable quan- 

 tity of copper sulphate. Copper sulphate is a preservative of value, 

 having been used extensively in Europe in the preservation of telephone 

 poles by the Boucherie process. The East Butte Copper Mining Com- 

 pany has bulkheaded one of the old passageways in the mine, making a 

 treating tank. The copper sulphate water has collected in this tank 

 and is used for the preservative. When the mine timbers have become 

 thoroughly seasoned and have been framed, they are lowered into the 

 mine and dumped into this vat, where they are left for several weeks 

 before using. A products engineer recently inspected several timbers 

 on the 800-foot level in this company's mine treated in this manner 

 and found that they were in excellent condition after eight years' 

 service. The untreated timbers in this same location have been renewed 

 twice during the same period. 



Experiments are contemplated by the ofifice of products to determine 

 the possibility of securing gum from western larch for the manufacture 

 of Venetian turpentine. The present supply of Venetian turpentine is 

 imported from southern Europe and is secured from European larch. 

 One firm in 1913 imported 25,000 pounds of this material, but this was 

 an unusual importation. The average annual consumption is believed 

 to be in the neighborhood of 8,000 pounds. It is used principally in 

 the manufacture of varnishes, sealing waxes, fly paper, and pharma- 

 ceutical preparations. 



Many retail lumbermen have been agitating the question of making 

 direct delivery charges to customers instead of placing on the lumber 

 a price which would cover this item. One retailer in Iowa gives the 

 following interesting figures on costs of unloading and delivery, based 

 on their per cent relation to sales : Per cent of sales of lumber and 

 battens, 1.58; posts, 1.80; shingles, 1.41 ; lath, 0.68; sash and doors, 

 0.88 ; moldings, 0.68 ; paper and roofings, 0.83 ; clay goods, 3.69 ; cement 



