The Forrest City times., 1889-10-26
SCIENCE AND INDUS TRY.

Composition of Old Mortu in- tcresting and instructive fact has just come to light Four samples of mortar taken from the remains of a founda- ton of great antiquity which were laid bare in Germany in March of this year, were chemically analysed. The striking feature in the analysis is the percentage of lime to tho sand used, the proportion being in the four samples S.S6, 12.65. 5.33 1887 per cent of sand respectively to one part of lime. the sand used being very coarse grained. The remains were supposed to be those of temple Of tho Persian god of light, Mithra, of about the mid dle of the third century
 Manufacture of Cow-bells There are four establishments in this country de- voted exclusively to tho manufacture of cow-bells, two being in Collinsvillo H. One hundred and fifty dozen are turned out daily. and thousands of them dangle from the ncclss of COWS all over the prairies of North and South America. The manufacture of COW bells is entirely different from that of other bells Instead of being mold ed. the metal is rolled into thin sheets. cut into symmetrical polygons, which. when folded, are pressed into their well-known form. After being rivitcd, they are packed in clay and brought to white heat. When suddenly cooled these steel bells are found to be not only tempered, but beautifully bronz- ed.
 Cost of Locomotive e-One man can build an eight-wheel passenger loco motive for a standard gauge railroad in l,500 days; it will require l,650 days work for him to build a consoli- dated ten-wheel locomotive for d stand. ard gauge. The average cost of the required labor would be Si,635. and the cost of the necessary metal is usually estimated at about $2,0o9. The profit may be put down at another 5000. which would include the ex- pcnses of sale and delivery. This would make an engine, when absolute ly ready for service and complete in every way, worth about Ss.6S5.
 Prevention of Typhoid Fever-~It is generally conceded that nothing is more discreditable to the civilization  of the nineteenth century thaa the ex. istence of typhoid fever, Dr. Edson, of the New York health department, in n late report. thus sums up tho logical conclusions drawn from the in- vestigations undertaken by him: ny phoid fever never infects the atlnos- phcro, it never arises de novo. The causes of the disease. in order of their frequency. arc as follows: First, in- fectod water; second. infected milk; third. infected ice; fourth. digit I in- lection; fifth. infected meat. Dr. Ed son states that with the observations of the ordinary obvious precautions suggested by these conclusions, the uisease should uot exl>L
 The Dangers of Carbolc Acid Car bolic acid is now much less nsed in surgery than formerly. Surgeons have only gradually become acquainted with It's dangers. The acid may not only cause inflammation and gangrene but also blood poisoning, and So may even prove fatal It k useful only in the hands of skiilful surgeon. and ough, never to be used without his advice. Tho best lotion for recent injuries Is the ordinary lead lotion, which can bc bought at any chemists. Tho hes, antidote in earbolic acid poisoning Is soap. which should be taken immediate ly and repeatedly until all symptoms oi poisoning have disappeared,
 New Architectural Elect "A build- ing has just been completed in Colum- bus. Ohio. in which novel and bcauti- iul architectural feature has been In- troduced. Tho front oi the building has medallion formed of pressed brick with the face clipped of. giving surface that resembles rough-taeed red sandstone. The brick, while equal in hppearance to stone, will retain it's beauty longer. as sandstone grows darker with time.