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Show I BIG CONSUMPTION I OFIOD PULP I Large Daily and Sunday Papers Fast Depleting Forests of I United States. II SPRUCE SUBSTITUTE 1 NOW BEING SOUGHT. X Government Forest Service Active in K Search for New Woods, and in I Conducting Tests in Paper I Manufacture.' (From the Forest Service, U. S. V. Department of Agriculture.) . Nqwspapers help in search for H pulp woods. I A recent issue of the New York I Herald is printed on paper made from woods which have not been used hero- toforo for news print paper. I The sheet which newspaper readers I hold in their hands each day is made I of wood. If one looks closely the little wood fibers can be seen, espec ially in the margins whore printing does not obscure them. The larger part of the wood so used is ground up, i while some of it is reduced by the ac tion of chemicals. The chemical pulp hns the longer fibers and a certain portion of it is added to the ground wood to givo the finished paper the required toughness. I Spruce the Best Pulp Wood 1 Spruce, abundant in the New Eng land nnd Lake States and in Canada, I has heretofore been the standard wood ' for making news print paper and as long ns there was a supply sufficient - to meet the needs of the paper indus- , try there was no reason to seek sub-j sub-j titutes. But heavy inroads have 1 been made on the spruce forests of ' the western part of the United States in this day of great circulations and large editions, especially of Sunday papers with their many parts. On a rough estimate, a newspaper with an 'ft avorago circulation of sixty thousand v copies and an average edition of twenty twen-ty pages, uses each day the product of I about four acres of forest. When this a figure is multiplied by the great num- 1 bcr of newspapers published in the Xt United States, many of them with A much larger editions, and when this flgg MtesfeSs'nia1 mullii&Hft5rtaga' many papers are issued every day of the year, it can be seen that the drain upon the forests is enormous. Foresters Forest-ers say that oven under the most approved ap-proved methods known to their profes-r profes-r sion, it could scarcely be expected that spruce would be able to hold its own, but would need supplementing by other material. It is but natural, therefore, that paper manufacturers arc looking for ; new sources of supply which will furnish an abundance of wood pulp, at a price which will not bo prohibi- tivc. Poplar and a few other woods 1 -"" arc used, but they do not go very far. J Forest Service Seeks New Woods I In the national forests there arc many woods considered inferior by lumbermen. Yet they arc available fo purchase at low rates and many ..of the timber stands avo readily ac- gl ccssiblc. The forest service, in its desire to utilize to the best advantage all of tho rcsourcc3 of the federal tim- bcr holdings, has been seeking proper K uses for these trees and has cxperi- mentcd in making pulp from them at K its pulp laboratory at Wausau, Wis- consin, an auxiliary of tho forest pro-I pro-I ducts laboratory at Madison. The B Wausau laboratory is equipped with I standard machinery and all expt-ri- ments nro carried out under condition.5 which duplicate commercial practice I A3 a final test of tho value of some M of theso now woods under practical conditions, arrangements were made j between the forest service and the Herald to print some part of it edi- tionon paper made from various woods that showed promiso as s-ib- Btitutes for sj ruce. These woods B were ground at he Wausau lubora- tory; tho product was than mired I with the usual proportion of chemical pulp and made into newa print paper, rplls of which were sent to Now York H for tho experimental run. Need of Practical Test. Tho new woods must fulfil many con- ditionB as to color, finish and strength, B In these trial runs, most of tho paper H is mndo from various western firs, Which show considerable promise, but B tho investigators do not consider their B teats comploto until thoy havo subjec-B subjec-B ted tho paper to actual printing con-B con-B ditions. They grow throughout tho B mountain ranges of tho west, partic-B partic-B ularly in tho Pacific coast states. B In addition to their interest in flnd- B ing new uses for littlo-uscd woods, B federal forest officers naturally desire B to keep tho newsprint paper manu- B facturing industry within tho United B States. They therefore seek to pro- B sent tho opportunity offered by many B of tho woods on tho national forests, H whoro there is a supply of cheap wood available for many years to come. Other woods hnvo been tried for pulp by the forest products laboratory and other newspapers will make experimental ex-perimental runs of tho paper. Any one interested in this experiment, or in other wood pulp tests cnrrled on by tho forest service, can securo exact information by writing to tho forest products laboratory at Madison, Wisconsin. |