Gorgeous Antique Microscope Slide Specimens...

From left to right: Bicellaria grandis, section of...  ...of cow's hoof, long section of fossilized coral, water scorpion (Nepa cinerea)19th-century naturalists packaged s...

http://www.neatorama.com/2012/10/12/Gorgeous-Antique-Microscope-Slide-Specimens/