Show EARTHQUAKES AND THE V OF THE POLES BY GARRETT P. P SEIt Copyright ht 1 1907 0 07 Journal S The remarkable phenomenon of oC the tho of or the earths earth's poles has at attracted at- at traded renewed attention on account of or the suggestion that It may have something to do ho lo with wih the recent extraordinary extraordinary ex ex- prevalence of oC groat earthquakes earthquakes earth earth- quakes quales and antl volcanic eruptions Ind Independently o of that suggestion however the time unsteadiness o of the poles possesses great interest It I shows that tho earth is subject to disturbances disturbances disturbances disturb disturb- ances that were dreamed of or ofa ofa ora a generation ago and it gives some sonic to the tho idea that tho the axis of or rotation of ot our globe globo may have havo ex- ex great changes in the time past and ma may possibly undergo considerable considerable consider consider- able chan change e in tho the future I The he well wel known fact that nt at some period In th the thc past the Arctic Arcle lands enjoyed a tropical climate and antl were inhabited by an abundance of or animal ant ani mal and and vegetable life could bo ho accounted accounted ac nc- ac- ac counted for upon the tho supposition t that al nt at that time the axis of qt C tho tim earth carth pointed In a n different direction checton from that which It I has hns at present An Any ny considerable chan change chango c In tho the direction 1 of tho axis would produce immense effect upon tho Uio surface ot or the tho eurth earth thu r interchanging i Jucu Jan lunil B B. B OJ pro ami pro ani-pro- pro other world wide consequences consequence that might revolutionize the life Ifo o otho ot of I tho the planet Fo For these reasons It I Is to o inquire into tho thio of tho ho observed observed ob oh- served changes es in tho tim position o othe or of ortho I time the poles a phenomenon now nov l known to astronomers under tho tim name o ot of variation of or latitude Tho ho existence of or this remarkable variation has been established within with with- in him the past twenty years years- and it Is primarily duo due to the lie Inv investigation of an tin American astronomer Mr Chand Chand- ler Its Is cause has not been definitely worked out but It is supposed to arl arHo arino o from flom the tho shifting of weight or mass in iii or oi upon the earth Atmospheric At At- agencies bringing about irregular distribution of or snow and andIce andIce andIce Ice in the tIme polar regions are arc among amons the time po possible and perhaps the most probable causes The Tho change in the tho direction of or the lie axis Is determined by ly observation of or orthe time the stars The principle ma may be 11 ii- 1 by considering tho ho effect upon the place of or the tho North Star Str supposing supposing supposing sup sup- posing the latter later to be normally situated situated situ situ- siu- siu exactly over tho the North Pole of the earth arth When the pole is dragged to one side by the time centrifugal force of or the extra w weight uns ly placed on that al side e the North Star Stars Is s no longer longel directly above It and the pole appears to describe a circle about that lint star sial The consequence Is that all al places In tho the Northern hemisphere havo mayo their latitudes chan changed places on one side having their north latitudes diminished The actual change of or latitude Jat- Jat lati lati- tunic tude thus far observed is is as u already remarked vcr very slight although gh measurable cable by iy delicate observations It I has Imas been found that tho the North Pole is never nc shifted from its is normal normal normal nor nor- I mal position more than about thirty or fort forty feet Sometimes it i is more and sometimes loss less Ics tIme the pole swingIng swingIng swing swing- Ing in iii a spiral which alternately InS grows larger Jarger for Cor or a fow few years yer and und then smaller If I the shift shir of ot place amounted to miles mUes instead of feet the consequences ml might ht be appalling It I has been argued argued that the tho reaction reaction tion ton of at this unsteady motion moton of tho the I Ifor Mr 1 Ir Boon Brotherson loft left lef Monday lonay for the tho West Vest ost desert to look after his I sheep Mr J. J W. W McGann has been in Sc- Sc vier county this week on business Mr B. B It n. Hanson hansen Mr 1 L. L L Larsen sen and Mr A. A C C. Candland were in Salt Lake Lako during time the past week on business Rev He A A. G. G Frank went to Salt Lake Lako Tuesday Dr and Mrs Mrs C. C N. N N Ray Hay were in Salt Sl LaJ Lake o for fol tho the foro fore part lart of the time Mr lr Guy Olsen left Ier Tuesday for the time Vest West desert to look 1001 at after tel his sheep Alt Mr Ml and amid Mrs Nells Larsen went to Salt Lake e Tuesday to spend a few I weeks I Mr Mi oIl and Mrs George c Peterson Paterson went to Ephraim Tuesday to visit friends Mr h. h George Ryland and Mr Mn 11 Peter Madsen went to Salt Lake Lako on business during the tho week Mrs Ida McGann went to Manti ManU Wednesday Miss Mis Josephine Hanson Hansen returned to her home in Veneda Wednesday after af nr- ter tOr a visit with wih relatives Mrs Hannah Gelding Golding wont to lo Salt Sal Lake Luke this week weel for a visit with wih friends Mr 11 Andrew Larson Larsen went to Ephraim Ephraim Eph Eph- raim Wednesday on eu business business- Mr Mrs h Libbie Aldrich is over front from Castle Dale visiting relatives Mr and Mrs A. A H. H went to Wednesday S Salt SJ Lake 1 Mr and Mrs 1 nO Ross 1 McArthur entertained entertained enter enter- tamed a few friends Friday e evening an and amid served a 0 tine lino supper Mr W. W D. D Candland Cantland returned Thursday Thurs Thurs- day ilay from Ohio whore ho he went after aCor aCora a car ear of oC sheep Mrs s. 18 Fannie C. C Miles came here Frida Friday Fri Fri- visit relatives da tiny day to Mr Frank c Madsen Matisen left heft lal yesterday terca for tor forthe forthe the West esl desert to look after ht his hl sheep shed I Ii i earths earth's axis axis the strain thus Introduced uc- uc ed d throughout the thc bod body of or tho time earth may nay have ha something to do with wih tho the occurrence of earthquakes It I is a Subject requiring careful Investigation before a definite opinion can cn bo be pro pro- mm nou ou need In regard to what ma may have occurred occurred oc oc- oc- oc in the tho past mast and what may happen In the future It ma may be he remarked re- re marked el that it is known that In I 1 the Inc Glacial Period enormous ions tons of or Ice existed in lii the Nort Northern ern North American merican down downto to o the neighborhood of New York was burled buried under ice thousands of or feet thick Was as this such such an nu accum-nu- atlon laton as would produce in a very considerable considerable con con- COl- COl chan chance c In the position of the earths earth's axis If I It was a- a n aone one one- sided accumulation It very l likely one one-I did thu dit cause causo such a change and thus tho submergence during tho the Glacial Period o of vast le regions ion which arc aro now v dr dry land would be accounted foI for fo I According to some Ime theories of or the tho tho cause cause o ot the Iho Glacial POlo Period Crol CroWs for Cor Instance there may bo be e n. n a recurrence recur recur- rence l-ence of or It In the future Rut But the tUo Influences o oC of It Lt oVi n are uro exceedingly blew v li In their toE Ion i are arc other remarkable af affecting the earth erth that are alO practically unknown to 10 the tho general public mind that thaC zip pur-zip astronomers for Instance has hinn called at attention at- at tenton to tho the fact that time the 11 earth appears up- up pears at times limes to rotate a little faster for several years als al's and then hon for 01 several years again tho ho slow up tip rho Tho S motions of or the moon exhibit irregularities S also During DurnA many inan nan years in Jim I succession It I gets gels ahead faster than it should in Iii II its Ht orbit t about the thc earth nith and afterward for sunny years it I falls fails fals I I behind If it I we wc could conceive that tho time earth carth alternately shrank an and amid then them expanded without chan change c o of its is total mass the thc ari irregularity of Its Is speed d of ot rotation m would be accounted for fOl and similarly if J tho time moon alternately approached ap ap- and antl then them receded irom the tho earth its is variation of velocity in Jim Its Is orbit would would hind find an aim explanation These I changes es however arc are extremely uto and the fact that the they have been detected at all al proves the delicacy and amid observations I accuracy of or astronomical n eal aton |