ctures, steam fields is relatively much farther in miles than to our largely into the successful use of the agency of water vessels and some domestic purposes. in sinking either piles orcylinders. At this point the present base of supplies in Washington and also in These coal deposits embrace a… … total for the State of 67,247 tons, minutes was made. The water pres- valued at $155,620. In 1893 the total sure in the pipes varies, according to the depth, from 25 to 150 pounds. production was 72,603 tons and the miles, The core of the cylinder is subsequently removed by digging in the ordinary…
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