Article PDF
Rights and permissions
About this article
Cite this article
The Royal Society of Edinburgh. Nature 209, 964 (1966). https://doi.org/10.1038/209964a0
Issue Date:
DOI: https://doi.org/10.1038/209964a0
Nature volume 209, page 964 (1966)
The Royal Society of Edinburgh. Nature 209, 964 (1966). https://doi.org/10.1038/209964a0
Issue Date:
DOI: https://doi.org/10.1038/209964a0