Gorgeous Antique Microscope Slide Specimens...
From left to right: Bicellaria grandis, section of cow's hoof, long section of fossilized coral, water scorpion (Nepa cinerea)19th-century naturalists packaged specimen slides — cross-sections or small, whole organ...
http://www.neatorama.com/2012/10/12/Gorgeous-Antique-Microscope-Slide-Specimens/

