and destructive Sierra Nevada, to reach final 

 destination in California and the region northward. 



2. DISTRIBUTED BY WARM JAI'AN 

 CURRENT. 



A very important agency helping on the capture 

 and directing the distribution of the trees all along 

 the western coast from California to Alaska, is the 

 presence in the north Pacific Ocean of the warm 

 Kuro-Siwa, or Japan current, primarily a hot trop- 

 ical current striking the islands along the southern 

 coast of China and deflected northward to be more 

 deflected by the Japan islands and hurled north- 

 eastward across the Pacific Ocean, there striking 

 the southern side of the long chain of Aleutian 

 Islands, which turn a part of the current down 

 along the coast of America, delayed and accumu- 

 lated during its long sweep by the many islands 

 and capes on the way, while its heat rises into the 

 atmosphere, carrying with it enormous quantities 

 of water. 



3. NOURISHED BY MOIST I y AND\VARD 

 BREEZES. 



Another factor closely connected with the pre- 

 ceding is found in the cool, broad, over run ing Pa- 

 cific breezes that prevail most of the year on the 

 northwest coast. Mingling witrrnthe heated and 

 moisture-filled air over the Japan current, the vol- 

 , ume presses inland, the moisture condensing and 

 falling most copiously upon the nearest cool ele- 

 vations giving sustenance and stimulus to the 

 richest and most remarkable forest on the face of 

 the globe. 



( 12 ) 



