MAKE A MEME View Large Image Macewen's Triangle demonstration.jpg en William Macewen 1848-1924 demonstrating his triangle to a group which includes Lane Hirschfelder Barkan Stillman http //ihm nlm nih gov/images/B17743 author date The National Library of Medicine ...
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Keywords: Macewen's Triangle demonstration.jpg en William Macewen 1848-1924 demonstrating his triangle to a group which includes Lane Hirschfelder Barkan Stillman http //ihm nlm nih gov/images/B17743 author date The National Library of Medicine believes this item to be in the public domain PD-old William Macewen
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