Article PDF
Rights and permissions
About this article
Cite this article
Certificate in Natural History. Nature 149, 327 (1942). https://doi.org/10.1038/149327a0
Issue Date:
DOI: https://doi.org/10.1038/149327a0
Nature volume 149, page 327 (1942)
Certificate in Natural History. Nature 149, 327 (1942). https://doi.org/10.1038/149327a0
Issue Date:
DOI: https://doi.org/10.1038/149327a0