be ruined. Always open on in all directions. The general character of tlic ore is the tion into space, which is sufficient to liquefy 777 cubic miles the side opposite to that from which thewind blows. When same as in all mines—being a mixture nf red (hloride and of ice into water at 32°, and comes… … will winter in a cool part of ventilating the mine and the greenhouse, if kept dry. creating a fine circulation of HILLSIDE MINING IN COLORADO. Water should only be given air. The cross cut from the sparingly. than one fourth of total annual loss of heat would suffice to bottom of the south winze…
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