Authors Note
DOI: 10.1063/1.3067261
At the meeting of the Publication Board of the American Institute of Physics on January 30, 1951, a proposed publication charge for Letters to the Editor (and similar sections) was approved. The charge will be effective with the July issues of the journals listed below and will be at a flat rate of $10.00 for each Letter. As in the case of regular articles, the charge will be made against the originating institution rather than the individual author and will be on a voluntary basis. When honored, 100 reprints will be provided without further cost.
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