ch place as may be arranged with the De- Cost of the work. Contained in SCIENTIFIC AMERICAN Lights. THE MICHIGAN MINING SCHOOL, partment, The expense of the test of the accepted SUPPLEMENT, No. 603. Price l0cents. To be hadat Independent of gasworks when HOUGHTON, MICH. iler wili be borne by the… … Outfit consists of 1 Electric Bell, 1 Battery, 1 Push Button, ers and regenerative lamps. ‘The Welsbach gas light, The prices of the different publications in the United DRY AIRREFRIGERATING MACHINE. 100 feet Wire, and Staples for Wire. Paraffin as a rival of coalgas, oil in gas making. Prices…
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