Thomas, an eminent English physician and naturalist, was born in London during the first half of the sixteenth century, but at what precise date is not known. He practised medicine in the metropolis with great reputation, and towards the close of his life retired to the country. He died about the year 1600. This physician is best known by a work which was begun by Edward Wotton, and printed at London in 1634, folio, under the title of Insectorum seu Minimorum Insectorum Theatrum, olim ab Eduardo Wotton, Conradio Gesnero, Thomaque Pennio inchoatum, Moufeti opera sumptibusque maximis concinnatum auctum, perfectum. A translation of it into English was published at London in 1658, folio. Martin Lister gives a very unfavourable opinion of this book. "As Moufet," says he, "made use of Wotton, Gesner, and others, an excellent work might have been expected from him; and yet his Theatrum is full of confusion, and he has made a very bad use of the materials with which these authors have furnished him. He is ignorant of the subject of which he treats, and his manner of expression is altogether barbarous. Besides this, he is extremely arrogant, to say no worse; for though he has copied Aldrovandus in innumerable places, he never once mentions his name." But Lay thinks that Lister, by expressing himself in this manner, has not done justice to Moufet; and he maintains that the latter has rendered an essential service to the republic of letters. He wrote De Jure et Prastantia Chemicorum Medicamentorum, Dialogus Apologeticus, Franc. 1584; Nosomantica Hippocratica, sive Hippocratica Prognostica cuncta, ex omnibus ipsius scriptis, methodice digesta, lib. ix., Franc. 1588; Health's Improvement, or Rules of the Nature, Method, and Manner of Preparing all sorts of Food; enlarged by Christopher Bennet, London, 1635.