Word: micron
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Dates: during 1920-1929
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...educated in France. From 1901 to 1905 he was government bacteriologist in Guatemala. At present he is at Alexandria, Egypt, director of the bacteriological service of the Egyptian Sanitary, Maritime, and Quarantine Council. †A millicron is one one-millionth of a millimeter, or one one-thousandth of a micron, or one twenty-fifth of a billionth of an inch. *This is the basis of the argument for Ipana tooth paste as advertised princeipally in Sunday papers and fiction-magazines...