Show GRIM E BY DIRE DIR MISHAP OUR GOOD STATE SHAKE SHARE WELl Ill HAVE ITS MAP A seismograph Is being Installed at the University of Utah It wilt will be several weeks before the instrument Is set up and aDd Its accuracy and properties ascertained JUt hut ut It Is assured that it will in give gie as good results as most Instruments of this char character character character acter Dr James E Talmage protes professor sor lor of geology at the university will have charge of the Instrument There arc are many parts to the Instrument and It will win take some lome time to put them together properly After they the have been assem assembled assembled assembled bled days will have hae to bo be spent adjust adjusting adjustIng ing lag the Instrument to the locality In which It Is The seismograph records graphically the motions of a point on the earths surface during an earthquake There are other o her parts to the Instrument that measure the maximum force of the shock and md re me record record cord core the number succession amplitude direction and period of ot successive oscil oscillations lations To Indicate indi te the time of a dis disturbance disturbance disturbance devices are employed Involving a delicately adjusted trigger rigger whose small movement permits a weight to fall causes an alarm to sound or a 3 a clock to stop To measure the magnitude of oC a shock a heavy heaY liquid Is agitated or made to spill from froma a vessel or a movable solid Is thrown down or displaced The underlying principle of the graph Is to give suspension to a ft heavy body that ia Is to suspend it in such sucha a way that when Its Us position Is disturbed n small smal distance no force will willbe willbe willbe be generated tending to restore Its original original original nal position I or what is the same thing so that if It Its support bo be b moved the mo motion motion o tion will wUl not n t be communicated to t th the tho body In connection with the tb Ih instrument there is a System of t connecting c tho t o suspended body with Various i it fixed t ed points or surfaces moved by y clocK clocKwork work in Iii such a way as to secure a It graph ic Ie representation of the relative r motions moU ns In various arlous directions direction The more elaborate instruments record motion in the vertical and In two horizontal directions Salt Lake is an ideal location for tor an ap Instrument of ot this nature as p It is Ia in ig the te center of a It largo large territory where there are no machines for top recording earth earthquakes earthquakes rth quakes It Is I close to the Pacific coast re me region region gion glaD where shocks occur frequently and also on a line with the Mexican volcanic country No other machine of ot this kind Is In Utah The one at the University of Colorado at Boulder js is perhaps the clos doe closest closest est to Salt Bait Lake There are lne or 01 two on the Pacific coast The seismograph I will bo be a notable addition to the tho equip equipment ment meat of ot the university and will give elve an advantage offered by only a 3 few of or the tWe best schools in the country |