Waterbury evening Democrat., 1888-08-01
SCIENTIFIC SQUlBS.

4 child's doll in which a small photograph is fixed is novelty.
 The oxalate of cereum is said to be an efficient palliative for nausea ill seasickness The doses are from ten to twenty grains every two or three hours.
 Waste silk has been shown to be the most effective non-conductive covering for steam pipes Tho price is high, but the demand is very great
 X new material called "leatherine" is an English manufacture. It can be sold for or cents per pound, is said to be as tough as leather, and is destined for packing and bag ging.
 A new patent candlestick keeps tho candle perpendicular, no matter how the stick may be held. The main principle of the invention is a ball joint of the simplest kind at the bot tom of the socket, the latter being fixed to an arm from the side of the base and extend ing to the center. The comfort and safety of the contrivance is apparent.
 \ new target, which indicates the value of the last shot without the necessity of a marker, has been brought out. When the shot strikes a colored disc appears, which tells the value by it's color The target has been tried successfully at indoor practice, and it is hoped that trial at long ranges will be afforded the inventor.
 An instrument called the oSteotome has been invented as an improvement over the tedious and clumsy surgical method of cut ting through bones by means of saws and chisels. It is practically circular saw re volved at very high speed by an electric motor. An ingeniously devised shield, which passes around the bone to be ope- rated upon, protects the surrounding flesh from injury
 A lamp burner has been patented by Mir Arthur Cautius, of Berlin, Germany. The wick tube consists of two concentric tubes with a space between them for the wick, the inner tube being shorter and tho outer one longer and provided with fange, covering the top of the wick, the burning portion of which will be on the inside instead of the top, between the flange and the top of the inner tube.
 At the Royal powder factory, of Wetteren, in Belgium, a new gunpowder is being made. They call it poudre papier, or paper powder, and it is said that a charge of 21a grammes (S9 grainsl gives, in a rifle of small caliber, an initial velocity of 660 yards to the Hall. This is equal to, if it does not beat, the Lebel powder The additional advantages arc at tributed to it of not smearing the barrel, of producing no smoke and of causing little re- coil.
 The following method of expelling mus, quitoes from q room is given by The Scien' tific American: Take of gum camphor q piece about one-third the size of hens egg and evaporate it by placing it in tin yes sel and holding it over lamp, taking care that it does not ignite. The smoke will soon fill the room and expel the musquitoes, and even though the windows should be left oper all night, they will not enter the room al long as the odor remains.
 A scientific school would be about the last thing one would expect to find in Siberia, but according to MT. Kennan, in The Century the town of Tiumen has well equippec school of this kind. It has a mechanical de partment, with a steam engine, lathes anc tools of all kinds, and a department o physics, with fine apparatus, including ever the Bell, Edison and Dolbear telephones anC the photograph, a very complete and vel equipped chemical laboratory, a good library and a department of art and mechanica dra wing.