e to be subjected toa high pressure. A few hints willserve to show how The construction shown in the accompanying illus- and the diffraction rings, seldom seen with large in- tration is designed to be of a simnple, durable, and inex- aluminum is best alloyed with iron. As aluminum struments, are… … come of the fund has accordingly been required. Im- The cabinet shown in the illustration is adapted to portant aid was rendered to the expedition by many contain nearly or quite all the articles commonly used of a building without detracting from its appearance. residents in Peru. Mr. MacCord,…
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