Article PDF
Rights and permissions
About this article
Cite this article
University of Birmingham. Nature 166, 635 (1950). https://doi.org/10.1038/166635b0
Issue Date:
DOI: https://doi.org/10.1038/166635b0
Nature volume 166, page 635 (1950)
University of Birmingham. Nature 166, 635 (1950). https://doi.org/10.1038/166635b0
Issue Date:
DOI: https://doi.org/10.1038/166635b0