Article PDF
Rights and permissions
About this article
Cite this article
The American Academy of Arts and Sciences. Nature 192, 515–516 (1961). https://doi.org/10.1038/192515b0
Issue Date:
DOI: https://doi.org/10.1038/192515b0
Nature volume 192, pages 515–516 (1961)
The American Academy of Arts and Sciences. Nature 192, 515–516 (1961). https://doi.org/10.1038/192515b0
Issue Date:
DOI: https://doi.org/10.1038/192515b0