Thomas Hornsby was a hard-working, scientifically ambitious and significant man of vision during the second half of the eighteenth century. He was a notable astronomical observer, founder of the Radcliffe Observatory at Oxford, a successful lecturer, a Commissioner of Longitude at a critical time, and editor of James Bradley's Astronomical Observations. This paper presents some long-neglected facts; in assembling scattered fragments into a coherent account, it raises new speculations.

Summary Edward Cocker was a well-known writing master and engraver during his lifetime, but is chiefly remembered for his posthumous arithmetic textbook, immortalized in the saying ?According to Cocker?. The book proved popular, being right for its time, and it remained in use for a century. It unexpectedly became the subject of controversy when Augustus De Morgan pronounced it to be the produce of its editor, John Hawkins. Research now shows that there is little doubt that it was really Cocker's (...) work. (shrink)

During the eighty years since the publication of the Principia, Newton's theories had been popularized. Based upon them, the first predicted return of any comet aroused anticipation and then elation. Contemporary accounts in widely-read periodicals show the interest in the vindication of gravitational theory provided by fulfilment of the prediction.