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Show SCIENCE NOTES The lucreaaed traffle attrncWd to the vicinity of the now station at Washington Washing-ton ls so great that it hut been foaod necteBary to effect the movement of the trolley cars at that point by aoioe ppectal arrangement The problem watt foaud by tbe engineers to be a very complex one. bot has been solved by the nse of 1kuq1 towera at the Important switching points. These towers are ornate structures, consisting con-sisting of small cabins mounted on posts oud raised about eight feet above the sidewalk, so that the switchman has C Hear view of the car lines. Tbe signal! . consist of colored lights placed uodcr grnted opi-nliih's lu tbe car tracks. An Interlocking switch and signal syatem ls employed to prevent mistakes on tbe part of tbe switch operator. Tbc signal will rot ebow clenr until tbe switch has been properly thrown, and thereafter the switch lever cannot bo operated until tbe car crosses over the slgottl. This system baa been In operation n suQlclent length ot time to fully demonstrate lu valoti to tbe cai Uf act Ion of all tbe parlies concerned, con-cerned, IncluJtog the public. In the harvesting of sugar cane the use of machinery baa made but little progress beraus of tbe complexities f tbe requirements, but there ls a macblna In experimental uw on tbc fields ot Cuba, the Invention of a resident of the Uulted States A. X. IlnUley, of Indianapolis, In-dianapolis, Ind . wblcb prouihie to supplant sup-plant human labor In this work to a very great degree. Gasoline or oil Is tho foel nued tor operating. Tbe machine cnts tb caue at thf bottom, strips it. tops It. ties 11 Jnto bandies nnd dumpn It In a cart. Tb experimental machine weighs 6.50O ttounda, but changes are contemplated lhat will reduce tbe weight 1,W0 pounds. ' Klgurea compiled by the Korttwtry Service Serv-ice show that the United States Is annually an-nually consuming three times na much wood as l being produced within Its borders bor-ders in lbs same time. A well known Celestial diplomat, who tans for years attracted world wide attcu-tion attcu-tion because of bU humor and also bis wisdom, has recently announced wild atml-aerloosness that he has started "live-forever,' club, sod one of the rsle-f which he follows In his effort to attain life everlasting a total abstinence from the us of salt. Tbe wUdom of this alt it ode baa been recutly vindicated by tne Invttili atloua of one of tbe M-leudflc workers In the United States employ, who has arrived st tbe conclusion thnt tbe people, of this country use more than four tloves as much suit as ls guo4 for tbcin. It bos been determined that salt added to our food to tie proportion ol 4 parts to LOOO asalsts to op ration of digestion, whtW more than that la harmful. harm-ful. The average consumption per day Is more tbau 23 parts to L.00O. Tbe CbUago, Rock Inland aod Taclns Railroad, after a prolonged experiment wltb tbe nse of telephones for train dl-yntcblng, dl-yntcblng, hs adopted them on the most Important division of tUe line, eoosl&tlng Of 165 mile of double track between Rock Island aod Rlue island. Tbe super Intendeat of the Illinois Central atatca tbat within s year sll tbe trains on tb main line will be moved by telephone aiyl tb telephone for the movement of tr.ilus t la uss on 1,400 miles of tn Burlington Burling-ton Ilnss, so that It veeras tbst tbe instrument in-strument Is sn aaanred soecee for ni'f road. work. |