504 



FORESTRY AND IRRIGATION. 



December^ 



stands at the rate of 5,000 to 10,000 

 trees per acre, averaging five feet high, 

 and reforestation is going on well when 

 the course of nature is not disturbed. 

 The reproduction in the Santa Catalina 

 INIountains is fair, while in man}- places 

 in the Chiricahuas and Grahams it is 

 almost wholly lacking. 



In striking contrast in these two re- 

 o-ions is the young growth of Engelmann 



sheep are rare and few cattle frequent 

 the higher mountains. As the trees are 

 not seeding this year, no tests of vitalit}^ 

 were made. The possibility of forest 

 extension hinges largely upon the ability 

 of the forester to promote natural repro- 

 duction ; and here is a profitable field 

 for study. 



Very little illegal cutting is being^ 

 done at present. The Huachuca Moun- 



SPECIMEN OF ARIZONA PINE IN SANTA CATALINA MOUNTAINS ; AI^TITUDE 6,000 FEET. 



Spruce, which is abundant and thriving. 

 The failure of the pine to reproduce well 

 is probably due to a combination of sev- 

 eral causes, which can be fully deter- 

 mined only by careful observation for a 

 series of years. Apparently seed years 

 are not frequent. The seasons are ex- 

 tremely variable, and have been very 

 dry for a number of years past. Tittle 

 damage has been done by stock, since 



tains contain many more mining claims; 

 than the other regions mentioned, and 

 are also within freighting distance of 

 other large camps; consequently all the 

 good timber was cut out years ago. 

 The water for the town of Tombstone 

 is furnished by reservoirs in two canyons, 

 in these mountains and is piped 25 miles. 

 The supply is barely sufficient now, and 

 its maintenance, of course, depends upon. 



