24 BULLETIN 620, U. S. DEPARTMENT OF AGRICULTURE. 



PUBLICATIONS ON PULP AND PAPER. 



Taper Pulp from Various Woods. Forest Service Bulletin (unnumbered), by 



Henry E. Surface. (Out of print.) 

 Experiments with Jack Pine and JHemlock for Mechanical Pulp. Forest Service 



Bulletin (unnumbered), by J. H. Thickens. (Out of print.) 

 ^Bibliography of the Pulp and Paper Industries. Forest Service Bulletin 123, by 



Henry E. Surface. Price 10 cents. 

 *The Grinding of Spruce for Mechanical Pulp. Forest Service Bulletin 127, by J. H. 



Thickens. Price 15 cents. 

 *Suitability of Longleaf Pine for Paper Pulp. Department of Agriculture Bulletin 72, 



by Henry E. Surface and Robert E. Cooper. Price 5 cents. 

 *Effects of Varying Certain Cooking Conditions in Producing Soda Pulp from Aspen. 



Department of Agriculture, Bulletin 80, by Henry E. Surface. Price 15 cents. 

 *Ground Wood Pulp. Part I, Grinding of Cooked and Uncooked Spruce; Part 2, 



Substitutes for Spruce in the Manufacture of Ground Wood Pulp. Department of 



Agriculture Bulletin 343, by J. H. Thickens and G. C. McNaughton. Price SO 1 



cents. 



* No copies available, for free distribution. For sale by Superintendent of Documents, Government 

 Printing Office, at the price indicated. 



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