Thomas Hornsby was the Savilian Professor of Astronomy at the University of Oxford. He gave an account not only of his own 1769 observations of the Transit of Venus, but also of the work of other Oxford observers. This extract is from his paper “An Account of the Observations of the Transit of Venus and of the Eclipse of the Sun, Made at Shirburn Castle and at Oxford”, Philosophical Transactions 59, (1769), pp. 172-182, at p. 180.