The Arkansaw traveler., 1889-10-19
oomFnkD ron TRn AnxAmsaw rnAvnEnm.
 SCIENTIFIC MISCELLANY.

SCIENTIFIC MISCELLANY. The manufacture of luminous paint has bss. b. gun in Austria on large suals, q about dxfh of tho cost hitherto. 4 special paper is supplied Cor use when tho paint is applied to walls- A new material called ssteel pig,s much strongsr than cold blast iron and lem expensve than steel is now being made ct Shenield. It is adapted for . variety of uses for which the ordinary iron was unsatisfactory.
 Olzewski, the Russian physicist, has mccseded in liquefying sufficient ozone to determine the boil- Ing point, which is -15s Fahrenheit. The nquid ozone is dark blue in oolor and s nearly opaque In layer e tenth of an inch thick.
 Dr. T. Billroth, of Vienna, states that insigni6- cant injuries arc frequently made serious by the uncalled-for application of carbolic acid, which skilln surgeons using much less than formerly. It may cause not only inflammation but even fatal blood poisoning.
 A Corsican doctor, N. de susini, has made sul- phuric ether engine of twenty horse power, which Is expected to realize . saving of sixty five per cent in fuel Scientific men in Paris who have witnessed its working arc aid to have reserved their opinion as to its merits until further tests have been made.
 The use of nitro glyoerine in cases of emergency instead of alcohol is recommended by an English physician. A drop on the tongue rouses . faint Ing man, and it may restore life In the case of ap- parent death, as from drowning. It has quickly relieved headache, heart pains and asthma and
  PARLoR ELEcrncrTr.-A very simple apparatus for obtaining electric spark Is made by . Ger man physicist. Round the center of . common lamp chimney is pasted 6 strip of hn-foil, and another strip pasted from one end of the chimney to within quarter of an inch of this ring. Then piece of silk is wrapped around brush, and the Int rior of the chimney is rubbed briskly. In the dark a bright electric spark may be seen to pass from one piece of tin-foil to the other each time the brush Ia withdrawn from the chimney. Many w4ww&N~ ~A~A A~ ~&~9 A4- tus.
 SPEAKING PIcTUREs-The picture gallery of tho future is likely to be apparatus for exhibiting succession of instantaneous photographs e c mov- ing picture of the person represented, this appara- tus being so geared with the photograph that e the latter gives the individuals speech the former will reproduce his gestures and facial expression By such means an absent actor, for example might be brought before an audience, or when present he might witness the reproduction of his own acting. This combination of photograph and photograph Is 6 suggestion lately made to the French academy by M. G. Gueroult, but experiments with simi- lar arrangement were made about . year and . half ago by M A. Bandsept, of Brussels SOLID SULPHURIc AcID.-A German patent has been taken out for 6 process of transporting sul- phuric acid in . solid state Certain Mlts-such e alkaline sulphates-give up their water of crystal lizstion when heated, and take 1t up again when cool, and such salt Is mixed in an anhydrous con- dition with s calculated quantity of the acid The mixture becomes granular, may be formed into cakes, and when heated the whole hquehies, and may be used as ordinary sulphuric acid, the pres ence of the bsulphate of soda or like salt having effect.
 EUROPEANS IN BRAzn.-Certain observations of Dr. Alfredo da Luy of Rio de Janeiro, are not en- couraging to intending immigrants from oomparA- lively cool latitudes. Such inhabitants of Rio de Janeiro as are not colored persons are generally pallid, weak of short stature and of but little mus cular strength. Malarious infection-not usually fatal by itself-seems to impoverish the blood and render the children of Europeans fral and liable to succumb early to disease. The children of Portu- guese and Italians suffer least, but Germans French Belgans and other persons from climates very diff ferent from that of Brazil, warned that pros ,1~, lee ~keal