or” showing heat of Boiler Flues, Superheated Steam, Oil Stills, ete. HENRY W. BULKLEY, Sole Manufacturer, ig Broadway, New. York. Only $3.20 a Year, including postage. Weekly. 52 Numbers a Year. wm. A. HARRIS. This widely circulated and splendidly illustrated |MACHINISTS’ TOOLS. TOOPES PATENT… … at $3.20 each; additional copies at same proportionate The CALLI-CRAPHIC Pen. THE DUPLEX INJECTOR. rate. THE PORTER-ALLEN A GOLD PEN and RUBBER HOUDER, containing ink for several days’ writing. a be carried in the One copy of the SCIENTIFIC AMERICAN and one copy The constantly increasing demand for…
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