Word: spalteholz
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...transparencies of organs and bones fascinated visitors. Dr. Werner Spalteholz, professor of anatomy at the University of Leipzig, developed them. He treats the heart, for example, with a solution which hardens cavities, arteries, veins. Then he soaks the organ in reagents which change the flesh of the heart into a transparent jelly. The observer can see the hidden blood vessels intricately intertwined like the roots of a seaweed...
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