Science News Letter - March 23, 1957

This document is an issue of the Science News Letter dated March 23, 1957. It contains various scientific reports, including articles on metallurgy regarding powerful magnets made from Supermendur, medical reports on drug addiction among physicians, public health statistics on tuberculosis among college students, and nutritional requirements for B vitamins. A significant portion of the document is dedicated to astronomy, specifically the visibility of Mercury and the upcoming annular eclipse of the sun on April 29, 1957. The article by James Stokley provides detailed information on the expected appearance of Comet Arend-Roland, which was discovered by two Belgian astronomers on November 8, 1956. The text notes that the comet is expected to be the largest and most spectacular of the 20th century, potentially brighter than Halley's Comet. It provides guidance on how to observe the comet and mentions that it will be visible to the naked eye in late April and early May. The document also includes a celestial time table for April 1957 and provides safety advice for viewing the solar eclipse, warning against the use of smoked glass or welder's goggles. The publication serves as a general scientific digest for the public, covering a wide range of contemporary research and astronomical events.