382 



FORESTRY AND IRRIGATION 



August 



of reserve organization, will be pres- 

 ent. The reserve officers instructed to 

 attend are : C. T. Balle, supervisor of 

 the Fish Lake Forest Reserve, Utah ; 

 G. H. Barney, supervisor of the Aqua- 

 rius Forest Reserve, Utah ; Sylvanus 

 Collett, ranger in charge of the Dixie 

 Forest Reserve, Utah ; Charles F. 

 Cooley, supervisor of the Grantsville 

 Forest Reserve, Utah ; J. F. Squires, 

 supervisor of the Bear River Forest 

 Reserve, Utah ; William Hurst, super- 

 visor of the Beaver Forest Reserve, 

 Utah : Dan S. Pack, supervisor of the 

 Payson Forest Reserve, Utah ; E. H. 

 Clarke, supervisor of the Salt Lake 

 Forest Reserve, Utah ; W. I. Pack, su- 

 pervisor of the Uinta Forest Reserve, 

 Utah ; Lorum Pratt, supervisor of the 

 Grand Canyon Forest Reserve ( North) , 

 Ariz., and Timothy C. Hoyt, super- 

 visor of the Sevier Forest Reserve, 

 Utah. Forest Inspector W. W. Clark 

 will also be present. The third meet- 

 ing will take place at Flagstaff, Ariz., 

 September i to 6. The following for- 

 est officers have been instructed to at- 

 tend : Fred S. Breen, supervisor of 

 the Black Mesa, San Francisco Moun- 

 tains and Grand Canyon (South) For- 

 est Reserves, Ariz. ; R. C. McClure, 

 supervisor of the Gila Forest Reserve, 

 N. Mex. ; C. T. McGlone, supervisor 

 of the Chiricahua Forest Reserve, 

 Ariz. ; F. C. W. Pooler, supervisor of 

 the Prescott Forest Reserve, Ariz. ; W. 

 H. Reed, forest ranger in charge of the 

 Tonto Forest Reserve, Ariz. ; Harold 

 Marshall, forest ranger in charge of 

 the Pinal Forest Reserve, Ariz. ; T. F. 

 Meagher, supervisor of the Santa Rita 

 and Santa Catalina Forest Reserves, 

 Ariz. ; John W. Farmer, supervisor of 

 the Mt. Graham Forest Reserve, Ariz. ; 

 John Kerr, supervisor of the Lincoln 

 Forest Reserve, N. Mex. ; L. F. 

 Kneiop, supervisor of the Pecos River 

 and femez Forest Reserves, X. Mex.; 

 K. F. Morrissey, supervisor of the 

 \\ ichita Forest Reserve, Okla. 

 Other meetings are to follow. 



During July and August Thomas E. 

 Will, of the Forest Service, has been 

 delivering a number of illustrated lec- 

 tures on forest problems in < )klahoma. 

 Indiana and Kansas. 



The Forest Service has 

 Laboratory P established a laboratory 

 at 696 East First street, 

 Boston, Mass., for the purpose of mak- 

 ing investigations and experiments in 

 the manufacture of sulphite or chem- 

 ical wood pulps. 



There are, generally speaking, two 

 kinds of wood pulp, mechanical and 

 chemical, the first obtained from grind- 

 ing- the wood and the second from a 

 disintegration by chemicals. Caustic 

 soda is used to a limited degree, but by 

 far the greater part of the chemical 

 pulp is made through the agency of 

 sulphurous acid and is known as sul- 

 phite wood pulp. It is relied upon as 

 the strength-giving stock in most of 

 the cheaper grades of ^aper, being 

 used in connection with the cheaper 

 and less strong mechanical pulp, in the 

 proportion of three or four parts in 

 ten. 



To supply the enormous demand for 

 the sulphite product more than 1,500,- 

 000 cords of wood are used annually. 

 Nearly four-fifths of this amount is 

 spruce. A rapid diminution in the sup- 

 ply of standing spruce and a conse- 

 quent marked increase in its cost are 

 the results of this great and growing 

 demand. Therefore a principal object 

 of this laboratory is to experiment on 

 the pulp-making possibilities of other 

 woods, with reference to obtaining: 

 First, a pulp that will approximate 

 spruce pulp to replace it where spruce 

 is now used ; second, other fibers that 

 may have properties peculiarly adapted 

 to special kinds of paper making; 

 third, a pulp of marketable value as a 

 by-product from the waste material 

 from sawmill and lumbering opera- 

 tions. 



The laboratory is conducted in con- 

 nection with a model plant which has a 

 capacity of about 65 tons of pulp a 

 day. ft is equipped with a chipper, 

 liquor - making apparatus, digester, 

 screen, vats, and molds for making 

 sheets of pulp, a press, and the boiler 

 and engine required for operating the 

 plant. 



The samples of wood used will be 

 collected by members of the Forest 

 Service in order that there may be no 



