Sdentitic American, NOVEMBER 15, 1873.] 307 are refilled, from the mines of the kingdom, fourteen From an ordinary cylindrical boiler, steam per cent of the aggregate amount is used … terial ite of expenditure. — adds heat to the flame, thus creating more perfect combuS” tion; and naphtha increases the lighting power to any de- sired standard. Fia. 2.- Using coa! alone, we are told that 9,026 feet of gas per tun was about the yield with the full complement of benches. Fia. 3.…
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