Medicine Merret then practised medicine in London, becoming a Fellow of the
Royal College of Physicians in 1651. Three years later he moved to the RCP's premises at
Amen Corner near
St Paul's Cathedral, as the first Harveian Librarian, for which he received room and board and a small stipend. But disaster struck in 1666 with the
Great Fire of London, which destroyed many of the rooms and most of the books. The college felt that he was no longer needed, but he felt that he had been appointed for life and fought them before the King's Bench twice, losing both times. He was expelled from his rooms and lost his Fellowship. He was a founding Fellow of the
Royal Society, joining May 20, 1663. He became the chairman of the Royal Society's committee concerned with the history of trade and commerce, but was expelled in 1685. and contains one of the first statements by an Englishman on the organic origin of fossils:
Metallurgy and glass making Merret had a particular interest in industrial uses of minerals, publishing papers on
smelting and
tin mining. In 1662 he translated
Antonio Neri’s
The Art of Glass (1611) and added 147 pages of his own, from other authors and his own observations. Today this would be called the
méthode champenoise, the addition of
liqueur de tirage in order to stimulate a secondary fermentation that produces the bubbles in sparkling wine. Spontaneous secondary fermentation had occurred in still wines since antiquity; most glass bottles of the time were not strong enough to contain the high pressures thus generated and so exploding bottles were an occupational hazard of winemaking. Sir Robert Mansell obtained a monopoly on glass production in England in the early 17th century and industrialised the process; his coal-powered factories in Newcastle upon Tyne produced much stronger bottles than were available in France. As a result, the English could deliberately induce a secondary fermentation in wine without the risk of blowing up the bottle, long before
Dom Pérignon is traditionally considered to have invented sparkling wine in
Champagne around 1697. Although Merret appears to have been more interested in making glass than in making wine, producers of
English sparkling wine such as Ridgeview have been quick to use his name as a generic term to describe their wines. == Death ==