The Warwickshire Herald. — 1899-11-02 (Birmingham, West Midlands, England)

FACTS ABOUT ALUMINIUM.  The following recently published lata on aln• mi SS i S int are of ititorest: I loffman, in 1722, im• nounceil the theory Mat alum earth was a distinct base. Marggrair, iii 1754, announced definitely his theory of aliiminia as a distinct SUbstioMe. Woehler, in 1827, CEl.raeled Mi tt itt Devine, in 1814, extracted the metal at a Cot, of abont 1:10 filo. Lim iirmt lump, or at, the rain of L 537,601 for a net ton. Enlarging his apparatus, he proilueeill al nium for a pound, or £44,800 a ton ;in 1855 and four years later, in 1859, he produces' the metal at a coat of 4s. a pound, or £448 a ton. This was nob absolutely pure aluminium ; as his methods of extraction were such as to leave impurities in his product, and these figures were mainly theoretical, as the cost of the al ttttt lie really produced was held at, 48s. a pound, or £.5,376 a ton, from 1862 to 1887., Deville used both chemical and electrical methods. He pub. fished his valuable hook, "De l'A I ttttt inium, 1859. Castner was the next producer to reduce the cost. He brought the price down about 20s. a pound in 1888, and later to 12s. a pound. Aliuni tt i ttt n is now advertised at 4s. a pound, foegrades not absolutely chemically pure. 110 W TO TELL TR II RATE 07 TRAVELLING BY RAILWAY can be accomplished by anyone, with very fair precision, in the following manner :—The telegraph posts along a railway line in this country are placed thirty to the mile. There are, we need hardly remind our readers, sixty ' Leo lo the hour, so that if the number of posts passed in it minute are multiplied by two, the results gives the her of miles per hour aL which the train is ts evening. •  A stary is It II Itobert Emmet, which s wed Isis set.rel ice ~,00r and resolution. lie wiss fond of vi tidying ry, and one night lase, after he family Rad gone to bed, he swat lowed a 1111 go quantity of corrosive sublkmaie In mistake for some acill cooling powder, lie ins• meslialely discoveresl his Mistake pout knew that death mustmliortly ensue unless he instantly swallowed the only antidote chalk. Timid men would have tarn at. the hell, roosed all Ilia I ly and sent for a stontachisitinp. Emmet called no one, mail° no noise, but, stealing downstairs met unlocking the front door, yvtast int() OW stable, tit:raped 001110 chalk which he knew to be there, soul took stillicient doses of to neutralise the poison. Argued, the inventor of Ike lamp which bears his name, had been experimenting for some tune in trying to increase the light given out by his lamp, but all to no psirpre. Osi a table before hies one night lay an oil flask, the bottom of which had been accidently broken IA leaving a long necked funnetshaped tubo. This Ise took sip cat elessly and placed it., withoot thought, ns Ise afterward relaial, over the Name. A William, white light W./ the magical result, and the hint was not. lost by the experimenter, who proceeded to lulut, lain di, covery into prsictical operation by " inventing' the glass lamp chimney. One of the wonders revealed by the microscope is that, Animals hairs IPII*AeSA ii inarked entity. A single Isair—the evidence 00000 r• der case—was shown Dr. Jesetielt, wii It lb" request l• hat he determine whether it, wits f1..111 Ole head of like stipposed llene., wisest, hair wits ttf the Maine colour. After exs aaaa iaa Ppeeiniirlt lieCiaell dial, it. was sufficiently unlike those of the sespected man to acquit Isis, The real murderer wsts snbsequently captur.l, and bin heirs were found to be identical in character with the one first examined. To mend meerschaum, nothing is better than a caseine cement. To make this cement, boil fresh cheese in *vat or, it is ropy. Ili-solve it in water glass or solet i.ei of silioso s• sof ...lienstir into it cal ' Use equal a solution, and o I it.  STOOD THE TEST of