Skull anatomy by Leonardo da Vinci
Skull anatomy by Leonardo da Vinci. Historical artwork and notes on the anatomy of the human skull and teeth, by the Italian artist and scientist Leonardo da Vinci (1452-1519). This bisected skull shows the external structure (right), and dissected facial sinuses (left), the air-filled spaces inside the bones of the face. The diagram at lower left shows the teeth present in one half of the mouth: 4 incisors, 2 canines, 4 pre-molars, and 6 molars. Da Vinci was the first anatomist known to have correctly noted the number and root structure of human teeth. The notes are an example of his mirror writing, which was written backwards from right to left, and could be read in a mirror.
© SHEILA TERRY/SCIENCE PHOTO LIBRARY
Giant trees in the botanical gardens, Peradeniya, Kandy, Ceylon, 1898
Giant trees in the Royal Botanic Gardens, Peradeniya, Kandy, Ceylon, 1898. 'Riesenbaume im botanische garten um Paradenia'. From "Rund um die Erde" [Round the Earth], written and illustrated by C. W. Allers. [Union Deutsche Verlagsgesellschaft, Stuttgart, 1898]
© The Print Collector/Heritage Images
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