.C^rPf C^?s^». ■H ■■■i u-<^>>3 5" (85/«x>° A WEEKLY JOURNAL OF PRACTICAL INFORMATION, ART, SCIENCE, MECHANICS, CHEMISTRY, AND MANUFACTURES. $3 per Annum. Vol.XXTI.--No. 2. > NEW YORK, JANUARY 6, 1872. S.J i [IN ADVANCE. I [NEW SERIES.. … THIERS' PATENT SHIP VENTILATOR, FOG ALARM, AND BILGE PUMP Ship Ventilator, Fog Harm, and Bilge Pump. The complete and constant removal of this foul air, accom- displace the vitiated atmosphere below decKS. This princi- We regard the invention which we herewith illustrate as complished by the…
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