Scientific American
Alum in baking powders Alum in bread 376 Argonaut, or Paper Nautilus* 375 Astronomical notes 377 Babbitt metal, to make [5] 378 Belts, rubber, slipping [6] 378 Bench, saw, Casson's* 374 Boot polish liquid [8] 378 Butter, to color [16] 378 Canal, ship, Belgian* 367 Economy, mac...
(5) T. McW. asks (1) for a good recipe for making Babbitt metal. A. By weight, 4 parts copper, 8 parts antimony, 96 parts tin. 2. What is meant by heating surface in boilers, an...
4. Part 4Mr. Bessemer says that he knew nothing of patents or patent law in those days; and adds that if he had for a moment thought it necessary to make any preliminary conditions with...
3. Part 3"With the exception of sweet and bitter herbs, grown chiefly for the purpose, and parsley, which is neither bitter nor sweet, but the most popular of all flavoring plants, compa...
2. Part 2A hundred years ago the laborer toiled long, produced little, and enjoyed less. To-day, thanks to the victories of invention, machinery does the heaviest of the work; the workma...
6. Part 6Dr. Hayes, in his recent address before the National Agricultural Congress, remarking that a very inadequate idea is given of a nation's resources by the number of sheep raised-...
7. Part 7A great number of sympathetic inks may be obtained by means of reactions known to chemistry. For instance, write on paper with a colorless solution of sugar of lead; if the wate...
5. Part 5This resistance increases much more rapidly than is represented by increase of distance between the carbon points. Hence the electric power with Werdermann's lamp is economized...
1. Part 1Alum in baking powders Alum in bread 376 Argonaut, or Paper Nautilus* 375 Astronomical notes 377 Babbitt metal, to make [5] 378 Belts, rubber, slipping [6] 378 Bench, saw, Casso...
11. Part 11SHAPED OR CRUDE, FURNISHED AND SET FOR BORING ROCKS, DRESSING MILL BURRS, EMERY WHEELS, GRINDSTONES, HARDENED STEEL, CALENDER ROLLERS, AND FOR SAWING, TURNING, OR WORKING STONE...
10. Part 10Dangers from Impure Potassium Iodide. The Poplar as a Lightning Conductor. The Mariner's Compass. Crude Sulphur from Iron Pyrites. Antimony for Batteries. Delicate Test for Wate...
9. Part 9M. B. W.--No. 1 is a silicious clay--it might be useful in the manufacture of some grades of pottery, etc. No. 2 is a ferruginous shale--contains about 80 per cent. of silica an...
12. Part 12_Answer_.--You have none except our well-known integrity in this respect, based upon a most extensive practice of thirty years' standing. Our clients are numbered by hundreds of...