Leonard Leopold Mackall (1879-1937), the anonymous fourth editor of the Bibliotheca.
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D001868:Book Collecting / Q000266:history; D002381:Catalogs, Library; D035081:Editorial Policies; D006666:History of Medicine; D049673:History, 20th Century; D007993:Libraries, Medical / Q000266:history; D011904:Rare Books / Q000266:history