A single-crystal neutron diffraction study of heavy ice

A single-crystal neutron diffraction study of heavy ice: correctionAn error occurs in the above article by S. W. Peterson & Henri A. Levy (Acta Cryst.(1957), 10, 70).The second sentence of the note added in proof, page 76, should read as follows: 'If the domains are large enough to diffract coherently (far smaller than the microstructure quoted) the neutron intensities would be those for the ordered structure and thus significantly at variance with those for the disordered model found'.It is to be regretted that the omission of the italicized portion resulted in a complete reversal of the sense intended.