expanded Federal aid for fire 
protection to watersheds of 
all navigable streams whether 
forested or not; (3) authorized 
an appropriation of $2.5 
million for forest protection, 
but directed the Secretary to 
use part of the funds to make 
a Study of the tax laws 
applicable to land growing 
timber crops, and to develop 
methods of insuring timber; 
(4) authorized cooperation in 
procuring seeds and 
seedlings for reforesting 
denuded land on farms; (5) 
authorized cooperation with 
States in advising farmers on 
woodlots, shelterbelts, and 
other plantings; (6) amended 
the Weeks law to allow, for 
the production of timber, 
purchase of lands in the 
watersheds of navigable 
streams; (7) authorized the 
Secretary of Agriculture to 
accept gifts of land valuable 
for timber production; (8) 
authorized the survey and 
classification of vacant public 
land that should be 
incorporated in the national 
forests, with approval of the 
President and Congress to 
make such additions; and 
(9) authorized the President 
to create national forests 
from military or other public 
reservations where doing so 
would not conflict with the 
32 
purpose of the reservation. 
National parks, monuments, 
and Indian reservations were 
excepted. 
Three amendments were 
added to the act in 1925 
and 1926. Section 2 was 
broadened to include 
nontimbered watershed from 
which water is secured for 
domestic use or irrigation. 
Section 2 was also amended 
to authorize payment of 
funds on the certification of 
the State Forester or other 
appropriate State official that 
the funds were expended in 
accord with the provisions of 
the agreement. Sections 3, 
4, and 5 were extended to 
cover territories and other 
possessions of the United 
States. 
The first year of the 
Clarke-McNary Act, a 
substantial increase was 
allowed in the fire-control 
appropriation over that 
provided by the Weeks law. 
Industry lobbying in the next 
several years resulted in 
additional increases. By 
1929, the total had increased 
from $400,000 in 1924 under 
the Weeks law to $1.2 million 
under Clarke-McNary. While 
$75,000 had been 
appropriated in 1925 for the 
