Erratum
OCT 01, 1949
DOI: 10.1063/1.3066285
The winter meeting of the American Society of X‐ray and Electron Diffraction was wrongly listed in the September Calendar as taking place in December in Columbus, Ohio. The correct dates are November 30th through December 3rd, at the Franklin Institute in Philadelphia, Pennsylvania, as listed above.
© 1949. American Institute of Physics
