Microscopic view of cells in a sliver of cork Hans Holbein the Younger Acland holds a walking stick

Acland holds a walking stick in his right hand and a paper in his left

the moon is in the top right corner smiling

'An Unselfish Man'

1646) to Robert Boyle (1627 - 1691)

Microscopic view of cells in a sliver of cork Hans Holbein the Younger Acland holds a walking stickIllustrations showing a microscopic view of the cells in a sliver of cork (Fig. 1); and a sprig of the sensitive plant (Fig. 2, unmagnified). Schem. XI from Micrographia: or some physiological descriptions of minute bodies made by magnifying glasses with observations and Inquiries thereupon, by Robert Hooke (London, 1665). Original: copperplate engraving. 1665