Show LARGEST OF BAROMETERS Interesting Instrument Now in Ob Observatory Observatory ObServatory of Florence Philadelphia Record Father Fattier Allan the director directo of ot the me meteorological meteorological meteorological observatory of Florence has constructed the largest barometer In Jn the tb world The instrument Is nearly nearh fifteen I meters high and its glass tube has a diameter diameter eter of ot over twenty centimeters Father Alfani intended originally or to use water instead of ot mercury in this barome ter but he discovered that a column of water with a vacuum above It could not rise higher than ten meters consequently he decided to use olive oil instead of ot wa ter To his great surprise however he found out that oil all contained a greater quantity of ot air nIl than water and lie he exper the greatest difficulty difficult In removing I It When hen this tilL was accomplished and the fluid was placed In the glass tube the in instrument Instrument instrument strument was found to register the weight or pressure of ot the atmosphere with per r I The barometer Is now expose l in Faenza where the centenary of ot Evange lista Is being celebrated |