blishers of the SCIENTIFIC AMERICAN bcg Save fuel, and ennply DRY steam. Attacnea to botlers SODA for cleaning boflers. Their preparation of this or set in separate furnaces. f.WjBULKLEY. Engineer. Salt was patented May 2ist, 1871. It success has led to 1874. to announce that onthe third day of… … 37 PARK ROW. NEW YORK Tus SOLENIIFIO AMERICAN will de sont one year Portland Cement. and ome copy ot SCIENCE RECORD on receipt of $B. A specialty. Also, Small Articles HE “ Scientific American ” is printed with for oan in great numbers, at 8. L. MercHant & Co. 76 South St., New York. A Prac- CHAS.…
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