Darwin's single microscope

Unknown artist

Wellcome Collection

A detailed illustration of a compound microscope with a rectangular base, a vertical pillar, and adjustable components for magnification and focus. The microscope features a stage with a specimen holder and an eyepiece. Richard Beck, A Treatise on the Construction, Proper Use and Capabilities of Smith, Beck and Beck's Achromatic Microscopes. London: John van Voorst, 1865. Page 102, illustration of Charles Darwin's single microscope.