The Russellville Democrat., 1879-12-11
POPULAR SCIENCE.

il ihcnt WI " 1skuidI supply IF0H Ayor
 in the country of the Cherokees, about
 300 miles from Charleston. In I76s s
 cargo of Carolina clay reached Liverpool
 and the trade became general in the 1 Cherokee and Pensacola clays, Wedge
 osdapparently giving preference to the \ latter. In l745 an American had shown | Cookworthy specimens of kolin and pet
 unzie found in Virginia, andsamples oi
 the wares made from them. The final practical effort of MT. Coykworthy's as sseciation, with the American WAS the foundation of the English porcelain in dustry. One hundred and thirty-two I yearslater the country from which the : suggestion came is importing kaolin l from that which received it. The clay 4 lrevolutipn The soldiers at Perth Am ' boy, called it fulferss earth, and used ii i for cleaning their buckskin brooches.
 A new antispeptic is described by ! 7hs Jo,easQlcf Chemistry. It is double salt of borate of potassium and sodium, and is made by dissolving in water equal | tportfons of chloride of potassium, nit rate of sodium, and boracic acid, filter ing and eyaporating to dryness. It does not give q bad taste to food. Butter may be kept aweet by it at ordinary tenn peratures for q week. Meat, game, etc, dippcdsinaa weak solution remain pure for a long time A piece of meat well rubbed with salt, and laid away two years ago is now in perfectly good con dition. Eggs dipped Tn a solution of this antiseptie remain good for long period. -Reyf1ier, the. electrician, has come to the following conclusion regarding hy- dro-electric batteries The most power tul battery is the Bunsen, Ruhmkorti model, but 1t is inconvenient dellterious and expensive. The most economical and constant is the Thomson, but 1t Is costly and ctirnbrolis A battery as pow erfhl as the Bunson. as economical as the Thomson, and as convenient as q well arranged rotary one, would still be fer from suitabfc for electric lighting. Hence, it Is not at present among hydro electric batteries that we have to look for the solution of domestic motor ap- piicable to the present electric lamps.
 A letter from Norman Lockyer to Drmas, published in the CoBaptes Res,dus of Sept. II, gives his reasons for believ- ing phoephorue to bn compound body. When phosphorus is used in tube with copper It tpresents very brilliant hy- drogen spectrum. When heated alone in tube where q vacuum has been formed by Sprengel's apparatus, 1t pre- sets nothing. Phosphorus at the nega- tive pole in similar tube, gives very abudantly gas which shows the spec trum of hydrogen, but is not hydrogen pbostatei @taia pelifd itTe
 @ The Natssse says that the French minister of war has published releula- tion for organizing opticafteiegraphy in time of peace. The several places on the French frontier are to be connected by posts, and the apparatus IS to be man. Guvered by persons trained to keep rec ards of communications sent and re eeived. This new service is to be placed under the supervision of the director of aerial communications, rho has already command of the balloonists and the col ,ombophiles for carrier pigeons.
 In Dinglers Journal, V. L. Dagusan gives his method,of forming artificial as. phalt Coal or wood tar is heated in boiler until all the water it may contain is evaporated. He then adds finely powdered marble of limestone that had been previously burned, stirs in 6 per cent of iron oxide, sihcate of potash and gypsum, and mixes the whole thorough ly. ft ta8 l
 --Wicks made of spun glass have been tried in lamps. and It is said they do the petroleum, oil, or alcohol to the flame with more steadiness than the or dinary wick; that they secure clear and pure light at a less expense of fuel, and that they diminish the usual un- pleasent odor. f't ; . Tea is us often adulterated az wine, and the detection of the spurious kind ot tea is as difficult as in the case of wine. Good tea should contain 30 per cent. Of extractiye matter soluble in wa ter, 7.5 per cent. of tannin, not more than 65 per cent of ash, and not less than ? per cent. of ash soluble in water. Some firm in Germany is attempting to substitute paper for wood in the man ufacture of lead pencils The paper is steeped in an adhesive liquid, and rolled round the core of lead to the required thickness. Alter the paper is dry 1t is colored and it resembles, when finished, an ordinary cedar pencil. 9 ? -For the protection of iron exposed 10 the weather from rust yarnish com posed as follows is recommended: One hundred parts mercury, 10 par,s tin, 20 parts green vitrol; l20 parts water, and l5 parts hydrochloric acid of l.2 specific gravity. .h
 is--The German admiralty is making surveys for canal between the Ems and the Jade, so that coal, war materials and other aricles may be conveyed rom East Friesland to Wilhelmshayen with out fear of blockade.
 In cases both of acute and chronic poisoning by arsenic, Dr. E. Ludwig finds the meal chiefly collected III the { liver, very little being retained In the b.ain and in, the bones.
 .---Gold hunters are busy in the Alps and the Iina A mine in the Grisons. locally known as Die Goldene Some" has been reopened by some English spectators.
 Strange Suicide of s Russian Countess,
 Moscow society would appear to be just now considerably exercised by the suicide of one of it's brightest ornaments, the young and lovely Countess Vera KoscheIeff, who q short time ago sud denly disappeared from her palace in the old Russian Capitol, only two days after her solemn betrothal to Count Ilelmann, which had been celebrated with festive reioicings upon m unusually magnificent | .oa la No ono eotsld imaoina Whithpf