Word: difficult
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Dates: during 1930-1939
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...late Andrew William Mellon spent the last years of his long life at two related labors. One was completed before his death last August. Then Franklin D. Roosevelt graciously accepted his $50,000,000 art donations as the nucleus of a National Art Gallery. The other and more difficult was to clear his name of the charge made by the U. S. Treasury in March...
With every front page in the country screaming the details, it is going to be difficult to forget the "Panay," but in the light of what seems to be our foreign policy, it will be much more difficult to make an issue...
...degrees Centigrade, and its limiting high temperature is set by the lack of suitable high melting crucibles to contain the sample under study rather than by any inherent limitation in the apparatus itself. This furnace makes possible the experimental investigation of many alloys which were formerly very difficult to melt under the controlled conditions necessary for scientific research...
...long edges together to make a tube attached at one end to the boy's armpit, the other to his hip. As the bared flesh heals, new blood vessels will form in the tube of flesh -blood vessels which will nourish it during the next and more difficult stage of the operation...
Because helium is light and therefore requires little effort to inhale, doctors have found it of value in treating asthma, croup, laryngitis and diphtheria when a constriction of the windpipe makes breathing difficult. It is also of value to deep-sea divers, as a 27-year-old engineer named Max Nohl demonstrated last week when he descended 420 ft. to the bottom of Lake Michigan. This was the deepest dive ever made in a diving suit.* An unofficial record of 361 feet was established in 1916 in Michigan's Grand Traverse Bay. Previous official record...