Scientific American Volume 40 No 13 March 29 1879 A Weekly Jour

Now take the ordinary door furniture. For generations the English builder and householder has had to be content with the stereotyped, with all its aggravating propensities. Firs...

The Professor says: "Germany, Holland, Belgium, France, and England, have been treating the victims of this plague for nearly half a century, but the result has only been the in...

I have just read the article in the issue of March 8, on the Gary Motor, and cannot refrain from offering a suggestion on the subject. When I read the article referred to in _Ha...

His researches, just made public, leave no doubt of the accuracy of M. Duter's view, that the glass of the jar really expands. According to the theory of elasticity, the effect...

Among the various economic products of the vegetable kingdom, scarcely any hold a more important place than barks, whether for medicinal, manufacturing, or other purposes. The s...

A square flue is better than a narrow one, as in two flues containing the same number of square inches the square flue would have the smallest amount of wall surface, and conseq...

CLUBS.--One extra copy of THE SCIENTIFIC AMERICAN will be supplied gratis for every club of five subscribers at $3.20 each; additional copies at same proportionate rate. Postage...

weighs but 1½ lbs. to the square foot, and saves daily four pounds of coal. (Asbestos saves but 2 lbs.) Price 15 cts.--5 cts. cash and 10 cts. after satisfactory trial. Agents w...

COPY. The engraving is done either from prints or pen-drawings. Almost all kinds of prints can be re-engraved directly from the copy, provided they be in _clear, black lines_ or...

Air heater, W. Pickhardt 212,499 Anchor, A. F. White 212,340 Animal trap, S. J. Bennett 212,430 Axle box, vehicle, P. K. Hughes 212,382 Axle, carriage, C. H. Kendall 212,387 Axl...

The best Friction Clutch Pulley and Friction Hoisting Machinery in the world, to be seen with power applied, 95 and 97 Liberty St., New York. D. Frisbie & Co., New Haven, Conn.