Microscopic view of an oyster shell Size:XXL: 127 x 100cm The boy is lent against

The boy is lent against a desk with books on

It was thought that this position was favourable as it relaxed the muscles and allowed them to stretch equally

the female in the act of catching a bee

crossing the line dividing Indian territory from Inuit

29 April 1802

Microscopic view of an oyster shell Size:XXL: 127 x 100cm The boy is lent againstIllustrations accompanying a letter describing Antoni van Leeuwenhoek's microscopical observations, dated March 1682. An English extract was printed in Philosophical Collections ed. Robert Hooke (London, 1682) no. 5, pp. 152 160. The illustrations show an oyster shell (fig. 6), and Leeuwenhoek's hypothesis about the formation of oyster shells (fig. 7). Original: red chalk on paper. 1682