616 JOURNAL OF FORESTRY 



to 527 cubic feet, and eucalypt coppice in 5 to 25 years grew at the rate 

 of 729 to 860 cubic feet. Only in a few cases does the increment go 

 over 200 feet. 



For comparison a few European data of best performance are added, 

 which show, if anything, about the same run as the Indian trees, or 

 only a slightly smaller, up to 240 cubic feet for iio-year-old silver fir. 



Compa7-ative Yearly Volume Increments of Certain hidian Tree Crops. In- 

 dian Forester, January, 1918, pp. 10-16. 



UTILIZATION, MARKET, AND TECHNOLOGY 



According to Fedele, as quoted in the Intcr- 



Ailanthus national Rcvieiv, the Ailanthus is recommended 



for as an excellent paper-yielding plant, this opinion 



Paper being based on experiments. It has the advantage 



of growing well everywhere, even in arid or 



purely rocky soils. It is a fast grower. By pollarding every three 



years and keeping the crown about 3 to 4 feet above the ground, the 



author obtained about 200 pounds of wood, which yielded 44 per cent 



of an easily bleached cellulose, suitable for paper pulp. One acre may 



contain from 240 to 280 trees, which under normal market conditions 



would give a profit of $40 per acre every three years. 



International Review of Agriculture, February 8, 1918, p. 194. 



In an article written especially for the annual 

 Supply number of the Paper Trade Journal, Martin L. 



of Griffin points out that, in spite of the numerous 



Paper experiments with many waste fibrous stalks and 



Material other material, it seems apparent that the manu- 



facturers of news and book paper must, for years 

 to come, depend on wood for their raw material. In spite of this, how- 

 ever, the pulp-wood supply is being allowed to approach the vanishing 

 point with little apparent concern by the Government. 



"Although it is generally recognized that our pulp-wood supply is approaching 

 the vanishing point, there is a firm belief among many prominent men, not con- 

 nected with the industry, that there are ample supplies of waste fibrous stalks 

 which could be used as substitutes for wood, if only manufacturers would seri- 

 ously turn their attention to them. Our public men in Washington have en- 

 deavored for many years to prove their contention by means of investigations 

 conducted through the Bureau of Chemistry and the Forest Products Labora- 

 tory. The net results have been experimental only, showing that it is possible 

 experimentally to make paper from any fibrous material, and also from many 



