Microscope manufactured by Christopher Cock of London for Robert Hooke. Hooke is believed to have used this microscope for the observations that formed the basis of Micrographia. (M-030 00276) Courtesy - Billings Microscope Collection, National Museum of Health and Medicine, AFIP).

Christopher Cock was a London instrument maker of the 17th century, who supplied microscopes to Robert Hooke. These microscopes were compound lens instruments, which suffered greatly from spherical aberration.

Bibliography

• Chapman, Allan and Paul Kent (2005). Robert Hooke and the English Renaissance. Leominster: Gracewing.
• Inwood, Stephen (2003). The Forgotten Genius: The Biography Of Robert Hooke 1635-1703. San Francisco: Mcadam/Cage.
• Helen Purtle, The Billings Microscope Collection of the Medical Museum, Armed Forces Institute of Pathology (Second Edition) Washington, DC: Armed Forces Institute of Pathology, 1974 (Reprinted 1987).