rs. of value to owners of Steam Boilers, Engineers, and ative value of iron and steel as materials forstreet rail- AIR, PURIFICATION OF. —BY D. Firemen. Pr ice $2.00 PATENT RIGRTS POR SAL road rails. Contained in SCIENTIFIC AMERICAN SUP- Price 10 cents. To be had at this JUST PUBLISHED. Prince,… … A. FLOYD DELAFIELD, Noroton, Cenn. Silk and Satin Neckties FREE. Agents’ snap. 19 Box and outfit, 2c, NECKTIE Co., Augusta, Me. 2000 Fine Black copies of Writing, Drawing, Muste. HOW TO MAKE AN INCUBATOR.— FAST AUTOMATI JAMES B. EADS.—AN ACCOUNT OF To Business Men. tions tor operating the…
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