History of Bay County, Michigan, and representative citizens; . AND REPRES£XTATI\E CITIZENS. 227 100 per cent. All of Bay Countys present salt-wells, by the way, reach this second flow ofbrine. Then came 135 feet of red and whiteshale, and so on down to 3,508 feet. Similarrock formations are registered at Kawkawlinand a salt-well in Hampton. The State geol-ogist is still confident that rock salt exists be-low that free flow of brine, but if it is more than3,500 feet below the surface, it would not payto secure it. Hence the attempt was given up,but the experiment of the North AmericanChemical
History of Bay County, Michigan, and representative citizens; . AND REPRES£XTATI\E CITIZENS. 227 100 per cent. All of Bay Countys present salt-wells, by the way, reach this second flow ofbrine. Then came 135 feet of red and whiteshale, and so on down to 3,508 feet. Similarrock formations are registered at Kawkawlinand a salt-well in Hampton. The State geol-ogist is still confident that rock salt exists be-low that free flow of brine, but if it is more than3,500 feet below the surface, it would not payto secure it. Hence the attempt was given up,but the experiment of the North AmericanChemical Company has pro\en of much benefitto future geological surveys at such greatdepth in other parts of the State. But to return to the discovery of a payingvein of soft coal underneath Bay County, andits development. The Michigan mine wasquickly followed by the sinking of the Monitormine shaft. Expert coal miners were broughthere from Ohio, Illinois and Pennsylvania, andcoal leases were sought among the farmers ofthat vicinity with feverish flurry. At first the
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