198 AISTNUAL EEPOETS OF DEPARTMENT OP AGEICULTUEE. 



cubic feet of wood was treated and that 90,400,000 gallons of creosote 

 and refined water gas tar, 26,750,000 pounds of zinc chloride, 5,675,000 

 gallons of paving oil, and 583,000 gallons of miscellaneous preserva- 

 tives were used. 



Between 400 and 500 wood-using establishments cooperated con- 

 tinuousl}'^, through the medium of the Wood Waste Exchange, for 

 the closer utilization of wood waste. Much material previously used 

 chiefly for fuel was more advantageously employed. The distribu- 

 tion of lists showing opportunities to buy or sell waste led to indi- 

 vidual sales of from a few hundred feet to 30 carloads. 



Data regarding current stumpage values were collected through 

 correspondence with buyers and sellers of stumpage in every im- 

 portant timber region. 



Quarterly limiber prices f. o. b. mill for both statistical and Na- 

 tional Forest needs were compiled for important commercial species. 



In cooperation with the Newsprint Manufacturers' Association, 

 statistics were gathered on pulpwood consumption and pulp produc- 

 tion in 1916. The 230 establishments reporting used 5,228,558 cords 

 of pulpwood, 17 per cent more than in 1914, the last year for which 

 similar statistics Avere compiled. A total of 3,271,310 tons of wood 

 pulp was manufactured, an increase over 1914 of 378,160 tons. 



Sets of commercial woods were prepared for free distribution to 

 educational institutions and for exhibits from raw material con- 

 tributed by lumbermen's associations. 



The increased activities of woodlot owners, lumbermen, and wood- 

 using establishments, their interest in markets and the care and 

 preparation of material, and efforts at closer utilization were re- 

 flected in the increased number of requests for information from 

 all parts of the United States. 



MISCELLANEOUS. 



There were added to the Service Library 913 books and pamphlets, 

 making a total ol 19,345. The list of bibliographies on special sub- 

 jects was increased and the older ones revised. The index to articles 

 on forestry keeps pace with the growth of the library, a total of 

 3,110 books and articles being indexed during the year. 



Twenty-three new publications were issued. The distribution of 

 Forest Service publications totaled 392,000 copies. About 240 public 

 addresses were made, mainly at expositions and upon request from 

 National Forest users, liunbermen's associations, and similar trade 

 bodies, technical societies, and educational institutions. Exhibits 

 were made at 39 fairs and expositions, and an exhibit at the Cali- 

 fornia International Exposition, San Diego, Cal., was continued 

 over from the preceding year. Twenty-three of these exhibits were 

 demonstrated by members of the Forest Service. Lantern slides were 

 loaned to more than 500 persons engaged in educational work. Addi- 

 tions to the lantern slide collection totaled 2,300, and 23 trans- 

 parencies, 54 bromide enlargements, and 1,747 lantern slides were 

 colored. Eight motion picture subjects were shown 280 times to 

 more than 100,000 people. Traveling exhibits of photographs, maps, 

 drawings, and wood samples were loaned to 215 schools and libraries. 



