Abstract
PROF. PICKERING, of the Harvard College Observatory, has issued the following notice:—
Article PDF
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
PICKERING, E. Aid to Astronomical Research. Nature 42, 299 (1890). https://doi.org/10.1038/042299b0
Issue Date:
DOI: https://doi.org/10.1038/042299b0