News & CommentSpecial Correspondence

NOTES FROM THE NATIONAL MUSEUM OF CANADA

+ See all authors and affiliations

Science  11 Jul 1930:
Vol. 72, Issue 1854, pp. 40-41
DOI: 10.1126/science.72.1854.40-a

This is a PDF-only article. The first page of the PDF of this article appears below.

PDF extract preview