The Seward gateway daily edition, and the Alaska weekly post., 1919-05-28

WASHINGTON, May 2S- Strange devices used in the war, and how Am crican ingenuity is turning some of them to peace time uses, Is q part ot an educational exposition of the ln- terior Department which is being hell here now, on for two weeks, having opened on May 18th. The exposition however is not confined to these eX- hibits, but include a fine display of the DepartmCnt'S ramificationS into the life, safety and progress of the coun- try resulting from the haphazard ad- dition of bureaus from time to time The various exhibits are making thu exposition of national scope.
 How q number of the bureaus O. the military department did theiy bit in the war are shown by the dis plays revealing the development of . machine to detect the presence of the enemy and spoil his plans, the recoy- cry of hidden mineral treaSurers need ed to forge war engines, and the i'm provement of super-poisonS. Along with these achievements, the eXposi- ton discloses inventions of privat, American citizens some of which were regarded of such importance tha' the issuance of patents was withheld under the ban of secrecy until the signing of the armistice.
 The Patient Office, a bureau of the department, also exhibits histories models of epOch-making American in veutionS, and from it's cOb-wcbbed re- cesSes as secret as the grave, resur- rect certain foibles or fancies of fam. ous men. Abraham Lincoln, for in- stance, designed a contrivance to fa- ciiitate the passage of vessels ovc' shallow waters, and his invention is shown at the exposition.
 During the war, the Bureau 3t Mines, another wing of the depart mcnt devoted almost it's entire atten- tion to war problems. The Geophone 2 listening device invented by the Fren- ch to detect enemy tunneling and turH- ed over to America for further devc'- opmcnt is part of the bureaus di" play This device is to he used in To eating entombad miners, and further development in the making is pro posed international code of rappinGS 10 enable entombed men to talk through solid earth. The gas masks tho making of shrapnel shells, and the methods of American oil drillerS. which kept a continuous stream of liquid fuel flowing into the war zone, are shown by working models.
 The geological survey already ia using the airplane in making topo- graphic maps, and this new method is Illustrated at the exposition. Mo dels show undeveloped regions inves- tigated by geologists, topographers and engineers and the same regions after they have completed their work and shown the natural resources and the possible development of the terri. tory.
 How America has shown it's grati. tude 70 it's war heroes and their de- pendents is demonstrated in the pen sion bureau display. Tn line with Sec retary Lanes farms-for-soldiers plan, the bureau shows that the country 'n the past has always advocated such rewards, this bureau having adjudi cated claims for lands and issued land warrants to soldiers for more than 6S,00O,000 acres. Lincoln, Grant Sheri- dan and Farragut were granted land for service through the bureau, and the applications signed by them arc or exhibition. Important historical papers signed by Washington, Jefferson, Hancock, Franklin and by Lafayette and Rochambeau also are on display.
 The general land office of the de-