The Nome daily nugget., 1915-06-07

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 ment is a fresh and steady attraction.
 Here also the Diesel stationery engine, set on a hard wood floor. with rare rugs around it and engineers in white flannel, is constant feature of inter
 est, running as smoothly as a Swiss
 watch Engines and engine rooms are
 ordinarily associated with oil, cotton
 waste and grimed engineers. This
 engine might be placed in ones parlor
 and run for a year without spotting
 with oil or defiling with soot. Milady ming.
 An interesting feature of the Diesel engine is one that links the western air of California and the Panama
 Pacific Exposition with the mighty St.
 Louis Exposition of ten years ago. The engine starts with an air com pressor tank On the day February 20th-th President Wilson started the wheels at the exposition with the wire
 less spark from Washington, the Die
 sel engine began operating under 1he
 impetus of the same spark. But the air compressing starter which the cur rent released, was filled in St. Louis and shipped to San Francisco in order that something more than sentiment should unite the American eXpositions
 of today and the exposition of decade lago.
 Machinery Hall occupying S.32 acres
 of floor space and widely advertised during the pre-e exposition period as the
 largest frame building under one roof in the world, which it is,-naturally is entitled to first mention.
 The Diesel engine is one of the prin- cipal attractions. On exhibition in
 this palace, and in sharp contrast to this ultra efficient power generator is the famous BabcOck "Centennial," the engine that in it's day marked as dis tinct an advance in the field of power
 as does the Diesel engine today. This relic was purchased by tte builders after it had been in service fifty years it's historic worth in the history of
 power development Ranking in the
 judgment of many engineers as only second in importance to the Diesel en- zine in the decades advance in power is the exhibition of methods and con trol and generation of high tension electricity. Of significant contempor- aneous value in the world of machinery and power or by forging.
 In the Palace of Machinery also are shown the instruments and methods that have very recently developed for the recording of various kinds of power steam and electricity, for exam i pie such instruments as those for regu lating temperature and for keeping temperature stable after a certain point has been reached. This repre- sents one of the most important of all of the advances made in the domain l of machinery and power during the decade since the St. Louis exposition. A most dramatic contrast in pro- gress is afforded in the Palace of Transportation. In this latter palace there are the historic mail pouches of lthe pony express, an old congress coach used in early days by the Wells Fargo Overland Mail, and, within a dozen paces, that behemoth of modern
 steam locomotives the "4943" Mallet of the Southern Pacific
 Transportation goes further than steam, for, near this. "4943" with a hauling capacity of 17,000 tons is the latest Westinghouse electric engine, while aeroplanes and automobiles fur nish graphic evidence of other advan- ced means of transportation by land and air, with maps, charts and models of great carriers displaying the de- velopment of ocean transportation. Side by side stand the great Mallet and the diminutive Collis r. Tuning ton, the first engine to be operated by the Southern Pacific. It has a haul ing capacity of eco tons and was just as puffy and important in it's day as the Mallet is now
 In the domain of mines and metal lurgy the most important advance that l is featured in this palace is that of human welfare; safety precautions for the men who work beneath the earth. | Of all present day industries, mining has had recorded during the past de-
 cade the most notable advances in well
 fare betterment. The work is shown
 of the Corps of Safety of the United States Bureau of Mines, a corps that lconstantly travels over the country in-
 stalling welfare equipment and giving 1 practical welfare instructions in the
 mining districts The safety drills