information:highlighting, stylistic:tone, structural:reformatting, quality:correction, stylistic:style_transfer
Microscopy

In 1663 and 1664, Hooke made his microscopic, and some astronomic, observations, which he collated in Micrographia in 1665. His book, which describes observations with microscopes and telescopes, as well as original work in biology, contains the earliest-recorded observation of a microorganism, the microfungus Mucor. Hooke coined the term " cell ", suggesting a resemblance between plant structures and honeycomb cells. The hand-crafted, leather-and-gold-tooled microscope he designed and used to make the observations for Micrographia, which Christopher Cock made for him in London, is on display at the National Museum of Health and Medicine in Maryland. Hooke's work developed from that of Henry Power, who published his microscopy work in Experimental Philosophy (1663); in turn, the Dutch scientist Antonie van Leeuwenhoek went on to develop increased magnification and so reveal protozoa, blood cells and spermatozoa.

Micrographia also contains Hooke's, or perhaps Boyle's and Hooke's, ideas on combustion. Hooke's experiments led him to conclude combustion involves a component of air, a statement with which modern scientists would agree but that was not understood widely, if at all, in the seventeenth century. He also concluded respiration and combustion involve a specific and limited component of air. According to Partington, if "Hooke had continued his experiments on combustion, it is probable that he would have discovered oxygen".

Samuel Pepys wrote of the book in his diary on 21 January 16 64 / 65: "Before I went to bed I sat up till two o’clock in my chamber reading of Mr. Hooke's Microscopicall Observations, the most ingenious book that ever I read in my life".