2 MISC. PUBLICATION 135, U. S. DEPT. OF AGRICULTURE 
Restrictions on proclamations. 
Act of March 4, 1907 (84 Stat. 1271) ; August 24, 1921 (387 Stat. aes June 15, 
1926 (44 Stat. 745) ; Secs. 471, 471a, Title 16, U. S. 
Hereafter no forest reserve shall be created, nor shall any additions 
be made to one heretofore created within the limits of the States of 
Oregon, Washington, Idaho, Montana, Colorado, Wyoming, Cali- 
fornia, Arizona, or New Mexico, except by act of Congress. 
Authority to modify proclamations. 
Act June 4, 1897 (80 Stat. 34, 36) ; Sec. 478, Title 16, U. S. C. 
* * * To remove any doubt which may exist pertaining to the 
authority of the President thereunto [in regard to the national 
forests], the President of the United States is hereby authorized 
and empowered to revoke, modify, or suspend any and all such 
Executive orders and proclamations, or any part thereof, from time 
to time as he shall deem best for the public interests. * * * The 
President is hereby authorized at any time to modify any Executive 
order that has been or may hereafter be made establishing any 
forest reserve, and by such modification may reduce the area or 
change the boundary lines of such reserve, or may vacate altogether 
any order creating such reserve. 
Creation by purchase. 
Act of March 1, 1911 (86 Stat. 961); June 7, 1924 (48 Stat. 654) ; Secs. 515, 
516, Title 16, U. S. C., act of March 8, 1931 (46 Stat. 1516), as to Porto Rico 
The Secretary of Agriculture is hereby authorized to purchase, 
in the name of the United States, such lands as have been approved 
for purchase by the National Forest Reservation Commission at the 
price or prices fixed by said commission: Provided, That no deed or 
other instrument of conveyance shall be accepted or approved by the 
Secretary of Agriculture under this act until the legislature of the 
State in which the land lies shall have consented to the acquisition 
of such land by the United States for the purpose of preserving the 
navigability of navigable streams. 
That, subject to the provisions of the last preceding section, 
the lands acquired under this act shall be permanently reserved, 
held, and administered as national forest lands under the provisions 
of section twenty-four of the act approved March third, eighteen 
hundred and ninety-one (26 Stat. 1103), and acts supplemental to 
and amendatory thereof. And the Secretary of Agriculture may 
from time to time divide the lands acquired under this act into such 
specific national forests and so designate the same as he may deem 
best for administrative purposes. 
That section 6 of the act of March 1, 1911 (36 Stat. 961), is hereby 
amended to authorize and direct the Secretary of Agriculture to 
examine, locate, and recommend for purchase such forested, cut-over 
or denuded lands within the watersheds of navigable streams as in 
his judgment may be necessary to the regulation of the flow of 
navigable streams or for the production of timber and to report to 
the National Forest Reservation Commission the results of such 
examination; but before any lands are purchased by the commission 
t 
