INSTRUCTIONS RELATING TO FOREST PRODUCTS. 15 



indicated above, requires the approval of the assistant forester in 

 charge of the Branch. 



CORRESPONDENCE. 

 REQUESTS FOR INFORMATION. 



Where referred. 



Requests for information will be referred to the unit best equipped 

 to furnish it, namely: (1) The Forest Products Laboratory, for data 

 on wood properties, timber tests, preservative treatment, seasoning, 

 pulp and paper manufacture and distillation; (2) Industrial Inves- 

 tigations, for data on statistics of production and on wood-using in- 

 dustries; (3) the district offices, for data on local experiments and 

 local utilization or market questions. 



Procedure. 



Requests for information will be acknowledged by the receiving 

 office, by postal card or letter, and transmitted immediately to the 

 proper unit of the Branch for action. 



GENERAL CORRESPONDENCE. 



Within districts. 



Requests for information and other correspondence within a Na- 

 tional Forest district will as far as practicable be conducted through 

 the district office. Exceptions to this rule in the collection of sta- 

 tistics or other general data will be made only with the approval 

 of the assistant forester in charge of the Branch. 



Outside of districts. 



Otherwise each unit of the Branch will correspond on matters per- 

 taining to its field of work directly with persons or firms throughout 

 the United States and in foreign countries, subject to the procedure 

 defined in the Manual on General Administration. 



Carbons for other units. 



Copies of correspondence bearing upon the work of another unit 

 will in all cases be sent to such unit for its information. Carbons of 

 letters from the Forest Products Laboratory or Office of Industrial 

 Investigations to members of these units on detail in National Forest 

 districts, which pertain to the work of the district, will be sent to 

 the district office. 



LABORATORY CORRESPONDENCE. 



The correspondence of the Forest Products Laboratory will be 

 signed by the director. Members of the Laboratory staff other than 

 the acting director may be authorized by the director to sign certain 

 classes of correspondence when advisable in his judgment. 



INDUSTRIAL INVESTIGATIONS CORRESPONDENCE. 



Correspondence originating with the Office of Industrial Investiga- 

 tions will be signed by the chief. Members of the office may be 

 authorized by the chief to sign certain classes of correspondence 

 when advisable in his judgment. 



