PULP AND PAPER AND OTHER PRODUCTS 

 FROM WASTE RESINOUS WOODS. 



INTRODUCTION. 



The idea that the waste long-leaf yellow pine, Norway pine, Douglas 

 fir, and other woods rich in resins can be used for the making of paper, 

 wood turpentine, rosin oils, and similar products is not new, but the 

 industry is just beginning to develop. It has received more or less 

 attention in this bureau during the past seven years, where information 

 as to its feasibility and practicability and as to the yields and char- 

 acter of the products which may be made has been gathered. This 

 information points the way to the means whereby valuable timber 

 may be conserved and the menacing waste wood of the lumbering 

 operations may be profitably utilized. 



The making of paper from these woods presents no unusual diffi- 

 culties; in fact, several mills are running almost exclusively on such 

 woods, while others use them in greater or less quantity. The recov- 

 ery of wood turpentine, pine oils, and other products from resinous 

 woods by steam or destructive distillation has been fairly well worked 

 out, and, when a plant is properly located and equipped and operated 

 skillfully, this industry is proving profitable. 



The production of rosin oils, tars, and pitches from common rosin 

 is also a thoroughly established, well-understood, and profitable 

 industry. 



With these successful results in view, it is at once clear that a 

 combination of the three industries, using waste wood as the raw mate- 

 rial from which all the products of these industries may be made, 

 should be more profitable and require less capital, equipment, and 

 labor than the three when conducted separately. Since each of these 

 industries, paper-making, wood distillation, and rosin-oil production, 

 is already well developed and the details quite well understood, no 

 experimental demonstration on a manufacturing scale is needed to 

 prove the practicability of the combination of the three. In short, 

 such combination under one management is the most logical industrial 



condition. 



7 

 66511 Bull. 15913 2 



