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Seal skull, 1803. From The Royal Society, PT/73/9/30
On the Difference in the Appearance of the Teeth a...
A view of the Ass's stomach inverted
Human [stomach] to show the Glands
Vampyre bat [stomach]
Stomachs of the turtle, blue shark, viper and frog...
Deer. Second cavity of the stomach
Orkney seal skull
On the Theory of Light and Colours. Thomas Young.