ADMINISTRATION 95 



amount of funds and therefore the greatest amount 

 of protection. Less valuable resources, less sus- 

 ceptible to fire danger, should receive protection in 

 proportion. Other classes of fire protection studies 

 have* to do with the various phases of fire preven- 

 tion, fire detection, and fire control. Studies have 

 also been carried on to determine the rapidity with 

 which fire spreads in different forest types, and un- 

 der a given set of climatic conditions. 



Protection from Grazing Damage. Studies of 

 the effects of grazing upon the natural reproduc- 

 tion of forests are conducted with a view to devising 

 a system of range control which would minimize 

 such injury without requiring the total exclusion 

 of the stock from the range. Studies have shown 

 that serious damage occurs to seedlings under four 

 feet in height during the dry season, on areas con- 

 taining poor forage, or which have been overgrazed, 

 or where there was little or no underbrush. It was 

 found that sheep do twice as much damage as 

 cattle. Some of the measures that have been 

 adopted to lessen the injury to reproduction by 

 sheep and cattle are: the revegetation of over- 

 grazed areas, reductions in the amount of stock, 

 provisions for the better distribution of stock by 



