Reports of the Inspectors of Mines of the anthracite coal regions of ...

206 Reports of the Inspectors of Mines. [No. 10
consider it my duty to interfere, although I am of the opinion that there
ought to be a limit, and each mine owner should be restricted from work-
ing beyond said limit, say 15 yards from the boundary line, or reserving
as much pillar each side of the line as would be required. By doing so, a
great deal of trouble might be obviated, and the unnecsssary expenditures
of thousands of dollars saved.