406 ECONOMICS OF FORESTRY. 



her lands. Excluding minor items, the law pro- 

 vides that 



" All public lands heretofore designated and 

 reserved by the President of the United States 

 under the provisions of the act approved March 

 third, eighteen hundred and ninety-one, the orders 

 for which shall be and remain in force and effect, 

 unsuspended and unrevoked, and all public lands 

 that may hereafter be set aside and reserved as 

 public forest reserves under said act, shall be as 

 far as practicable controlled and administered in 

 accordance with the following provisions : 



" ' No public forest reservation shall be estab- 

 lished, except to improve and protect the forest 

 within the reservation, or for the purpose of secur- 

 ing favorable conditions of water flow, and to 

 furnish a continuous supply of timber for the use 

 and necessities of citizens of the United States ; 

 but it is not the purpose or intent of these pro- 

 visions or of the act providing for such reserva- 

 tions to authorize the inclusion therein of lands 

 more valuable for the mineral therein or for agri- 

 cultural purposes than for forest purposes. 



" ' For the purpose of preserving the living and 

 growing timber and promoting the younger growth 

 on forest reservations, the Secretary of the Interior, 

 under such rules and regulations as he shall pre- 

 scribe, may cause to be designated and appraised 

 so much of the dead, matured, or large growth of 

 trees found on such forest reservations as may be 



