Show I U PROTECTION DEMANDED Denver Dever Colo Cob April Apri 6 Operators In Inthe inthe the northern Colorado coal col fields toda today reiterated their tei determination to opp ate their mines on a nonunion bai ha were we made me upon the sheriff sherif of o Boulder Bulder Adams and ad Weld countie for deputies depute to t protect the mines will wi be b taken te immediately to nonunion and engineers an ant and t within a few weeks It is 11 planned t f have the mines winning full mine ful capacity |