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Royal Collection © Her Majesty Queen Elizabeth II
Recto: The vessels of the pelvic region. Verso: The mechanics of the arm in man and monkey
Recto: a drawing showing the ramifications of the veins and arteries of the pelvis, in ink, the right leg being outlined in black chalk; a smaller drawing of the same; a blood vessel from groin to hip; notes on the drawings. Verso: the left arm skeleton of a man; the left arm skeleton of an ape, both are drawn to show the leverage obtained by the two differing attachments of the muscles; the muscles of the shoulder; a mechanical drawing illustrating the principles of leverage.