Scientific American Supplement, No. 315, January 14, 1882

By Dr. Scheibler's important discovery, a new era has begun in the matter of strontianite. Deposits of considerable importance have been opened in the Westphalian districts at a...

We herewith illustrate an exceedingly simple form of detecter, to show if the night watchmen perform their visits regularly and punctually. In the case, C, is a clockwork appara...

After you have made the bend it will require to be soldered, but before you can do this you must have the joint quite perfect and the edges true one with the other. A good bende...

All these statements are matters of everyday familiarity at the present day, but it must be remembered that they are records of experiments made twenty years ago, and as such th...

This series of experiments offers a rare example of the verification of algebraic calculation by direct demonstration. In general, we may employ geometry, which gives a graphic...

Referring to Fig. 1, A and B are two troughs rectangular in cross section attached to the supports in such positions that their axes are inclined to one another so as to form th...

In a recent number of the _Journal des Usines à Gaz_ appears a note by M. Chevalet, on the chemical and physical purification of gas, which was one of the papers submitted to th...

Practical Notes on Plumbing. By J.P. DAVIES. Figs. 37 to 53. Tinning iron pipes, copper or brass work, bits, etc.--Spirit brush.--Soldering iron to lead.--Dummies for pipe bendi...

In previous communications I have given processes for detecting the adulteration of cane-sugar by starch-sugar. The adulteration of sugar-house sirups by starch glucose is still...

Make a bowl of punch according to the directions for brandy punch, only a _little_ stronger. To every pint of punch add an ounce of gelatine dissolved in half a pint of water; p...