DANGERS AND DISEASES. 

 DANGERS AND DISEASES. 



49 



The White I'iiie is suhjcct, to ii consideriible nuuiber of chistructive iiithiciices even when 

 growiiij^ spoiitiirn'oLisly, but ;i ];irjje jiropoition of tliose iiii,i;iit be uvoided if properly understood 

 and guarded against, since they are in great part dne to linman agency. 



INJURIES BY HUMAN AGENCY. 



The subject of forest lircs has been so fully discussed that it is unnecessary here to treat it 

 iti detail, although the pine forests tif the Northern States have sntlered more irreparable injury 

 from this than from all other destructive agencies combined. Erom the numerous suggestions 

 that have been nuide resi)ecting protection from fire and from unnecessary injuries in general, tlie 

 most important ajjpear to be: 



(1) That a well-digested ('ode of laws, cai)able of prom])t enforcement, based ui»on the 

 recommendation of a noni)olitical forest commission, is of primary importance. 



KiG, 4.— Girilkd Wbite Pine coutinuing to grow. 



(2) That a correct public sentiment, encouraged by a wider dissemination of information 

 concerning the value of forest ])roducts and the time required for their growth, will have more 

 iutiuence than all other means together in preventing unnecessary destruction. 



Unlike the Loblolly I'ine of the Southern States, or the Eed I'ine with which it is commonly 

 associated, White I'ine has a thin bark during the first thirty to lifty years, which artbrds but 

 slight protection from tire. Consecpieutly, the species suffers much in young growths from surface 

 tires, which do little or no harm to the thick-barked i)ines and hardwoods. In the mature trees 

 the growing layer is much better protected, as the bark with age becomes proportionately thicker 

 than that of lied Pine. 



Related to the foregoing, and properly placed under the head of injuries to be charged to 



human responsibility, are wouiuls occasioned by cattle. A pine forest is less liable to injury 



from the browsing of cattle than one composed of deciduous trees, and in the Eastern States old 



pastures commonly grow up to ]iine, the deciduous species being kept down by (he cattle. But in 



20233— No. 22 4 



