Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleProgress of Geology in the U.S.S.R.AuthorsTOMKEIEFF, S. I.PublicationNature, 1944, Vol 154, Issue 3918, p711ISSN0028-0836Publication typeArticleDOI10.1038/154711a0