Show PREDICTS HEIGHT ale OF TIDES or of the many duties undertaken by the united states coast and geodetic survey which furnishes official information about cur bea a cot coast and harborn for the un uso 0 of marine mariners plying these waters li Is that of predicting tho the tides at any given elation station at any time in the future to gain thil this information 9 new machine of a very campli cartt nature hits just been constructed by the bureau find and placed in n li the headquarter headquarters rt ashington ashin gion the N ila IA le lemla tor for a year can bo be obtained in jn from ten to fifteen hoar hours tor for any station to the layman the ma chine appears to be a mass of tittle little wheels knobe crank cranks chain and glittering but the new superintendent of the tho bureau pr dr 11 lpeter lester june explain explains the function functions of each part and finally arri 1 veil at be the roll of paper on one end on which two fountain pen pens are drawing line lines ono of heie these draw draws a it hue ille about lie the middle i of the roll alch which represent represents the mean iea sea level while the the other draw drawn a varying line which represents the tide from this thi graphic record which ie le STO feet long and about elx six inches wide representing thu tades tor for a year the tide level at tit any tiny lime time in that can be readily ascertained |