1 6 Colorado Gold Mines. [January, 



worked on tribute. In either case the miner, having no in- 

 terest in the property, aims only at extracting as much ore 

 as he can during the term of his lease, without regard to 

 the future of the mine. 



I. To what a degree the subdivision of the lodes has been 

 carried may be judged from the following enumeration of 

 the claims on some of the principal lodes in the district. 

 The list is taken from Mr. G. W. Baker's pamphlet on the 

 treatment of gold ores in Gilpin County, Colorado. 



On the Gregory Lode — 



Feet. 



The Black-Hawk Co. owns 500 



Consolidated Gregory Co. owns . . 500 



Marragansett Co. owns .... 400 



Rocky Mountain Co. owns . . . 200 



Benton Co. owns 600 



Russell (Extension) Co. owns . . 300 



Briggs Co. owns '. 250 



Smith and Parmlee Co. owns . . 1100 



New York (Extension) Co. owns . 250 



United States Co. owns .... 250 



Manhattan . , '. 400 



4750 

 On the Bobtail Lode — 



Feet. 



The Bobtail Co. owns 433i 



,, Stirling Co. owns 6oJ- 



,, Brastow Co. owns 62! 



,, Sensenderfer Co. owns .... 128 



Private owners in small claims own from 



700 to 800 



1483 

 On the Bates Lode — 



Feet. 



The Rocky Mountain Co. owns . . . 250 



,, Bates and Baxter's Co. owns . . 300 



,, Union Co. owns 200 



,, Loker Co. owns 400 



,, Gregory Co. owns 100 



Private persons 300 



1550 _ 

 These three lodes have been the most productive in the 

 district, and the most diligently worked. The Bobtail has, 



