Article PDF
Rights and permissions
About this article
Cite this article
Smithsonian Institution: Annual Report for 1949–50. Nature 168, 243 (1951). https://doi.org/10.1038/168243a0
Issue Date:
DOI: https://doi.org/10.1038/168243a0
Nature volume 168, page 243 (1951)
Smithsonian Institution: Annual Report for 1949–50. Nature 168, 243 (1951). https://doi.org/10.1038/168243a0
Issue Date:
DOI: https://doi.org/10.1038/168243a0