Christopher Wren
1653–1664

After receiving his M.A. in 1653, Wren was elected a fellow of All Souls' College in the same year and began an active period of research and experiment in Oxford. Among these were a number of physiological experiments on dogs, including one now recognized as the first injection of fluids into the bloodstream of a live animal under laboratory conditions. At Oxford he became part of the group around John Wilkins, he was key to the correspondence network known as the Invisible College, Within the arms of All Souls, the arms of Wren's friend Robert Boyle appear in the colonnade of the Great Quadrangle, opposite the arms of the Hill family of Shropshire, close by a sundial designed by Boyle's friend Wren.

His days as a fellow of All Souls ended when Wren was appointed Professor of Astronomy at Gresham College, London, in 1657. He was there provided with a set of rooms and a stipend and required to give weekly lectures in both Latin and English. Wren took up this new work with enthusiasm. He continued to meet the men with whom he had frequent discussions in Oxford. They attended his London lectures and in 1660, initiated formal weekly meetings. It was from these meetings that the Royal Society, England's premier scientific body, was to develop. He undoubtedly played a major role in the early life of what would become the Royal Society; his great breadth of expertise in so many different subjects helped in the exchange of ideas between the various scientists. In fact, the report on one of these meetings reads:

Memorandum November 28, 1660. These persons following according to the usual custom of most of them, met together at Gresham College to hear Mr Wren's lecture, viz. The Lord Brouncker, Mr Boyle, Mr Bruce, Sir Robert Moray, Sir Paule Neile, Dr Wilkins, Dr Goddard, Dr Petty, Mr Ball, Mr Rooke, Mr Wren, Mr Hill. And after the lecture was ended they did according to the usual manner, withdraw for mutual converse.

In 1662, they proposed a society "for the promotion of Physico-Mathematicall Experimental Learning". This body received its Royal Charter from Charles II and "The Royal Society of London for Improving Natural Knowledge" was formed. In addition to being a founder member of the Society, Wren was president of the Royal Society from 1680 to 1682.

In 1661, Wren was elected Savilian Professor of Astronomy at Oxford, and in 1669 he was appointed Surveyor of Works to Charles II. From 1661 until 1668 Wren's life was based in Oxford, although his attendance at meetings of the Royal Society meant that he had to make periodic trips to London.

The main sources for Wren's scientific achievements are the records of the Royal Society. His scientific works ranged from astronomy, optics, the problem of finding longitude at sea, cosmology, mechanics, microscopy, surveying, medicine and meteorology. He observed, measured, dissected, built models and employed, invented and improved a variety of instruments.
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