to CIRCULATION of a Furnace. THE order by J.F. NER, 62 Center St., N. Y. paper. HARTFORD a) Pure Air and an Even Tempe- 205: OMPRESSED AIR MOTIVE POWER.—For fad HEAR : rature throughout a Room. The Supplement. articularsof the mostrecent practice, send cents for SCIENTIFIC AMERICAN SU PLEMENT, Nos.… … ber 26, 1867, can be supplied with official copies at rea- CONCERNING THE SALE OF PATENTS. Buffalo, N. Y. One copy Scientific American and one copy All laws of State legislatures that in any manner inter- sonable cost, the price depending upon the extent of (a Send for Catalogue. _ag fere with the…
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