RICHARD, an eminent English physician in the 17th century, was born in Cornwall, and educated at Westminster school and Oxford; after which he studied medicine, and practised under Dr Thomas Willis, whom he instructed in some parts of anatomy, especially when the latter was writing his Cerebri Anatomie. He, with Dr Willis, in 1674, discovered the medicinal waters at Alkborough in Northamptonshire; which, upon their recommendation, became very much frequented. In 1666, he followed Dr Willis to London; practised physic under him; and became fellow of the Royal Society, and of the College of Physicians. In 1669 he published his Tractatus de Cordi; and after the death of Dr Willis in 1675, he was esteemed the most eminent physician in London. Upon the breaking out of the Popish plot in 1678, says Mr Wood in his Athenae Oxonienses, he closed with the Whigs, supposing that party would carry all before them; but, being mistaken, he lost his credit and practice. He died in 1691.