Article PDF
Rights and permissions
About this article
Cite this article
GODDARD, L. Counting in the Past. Nature 222, 42 (1969). https://doi.org/10.1038/222042a0
Issue Date:
DOI: https://doi.org/10.1038/222042a0
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.