Slide showing drawing of 'Anchylostoma doudenale'. Slide shows black and white drawing of 'Anchylostoma doudenale (After Sonsino)'. Three images labelled A, B, C. A, Male; B, Female; C, embryo. Round sticker in upper left corner reads '6'. Round sticker in upper right corner reads, '37'. On top edge of tape, 'Anchylostoma doudenale'. Late 19th - early 20th century