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Title
50 & 100 Years Ago.
Abstract
The article presents past articles that were published in the periodical "Nature" of the June 29, 1957 and June 27, 1907 issues. The first article is about the heredity lecture of professor J. B. S. Haldane delivered at the University College in London, England. The second deals mainly on certain signals received at one of the Marconi wireless telegraph stations.