Mr. Martyn’s propensity to the science of botany was first excited by an acquaintance with Mr. Wilmer, an apothecary, who afterwards became the reader in the Botanic Garden at Chelsea, and by an intimacy contracted with Dr. Blair and Dr. Sherard. In the year 1732, he published a translation of “Tournefort’s History of Plants about Paris,” and in the same year a “Catalogue of the Plants about London,” but he did not complete it. From a strong conviction that observations made upon plants in their natural places of growth were the least liable to error, he about the same time began his botanical excursions, which were mostly performed on foot, and were continued for a long period with unwearied diligence. His “Hortus Siccus,” containing 1,400 specimens, is a sufficient testimony of his industry. Nor did he confine himself wholly to the contemplation of vegetables, and their hidden virtues; the numerous insect tribe began to attract no small share of his attention. In 1721, he principally instituted the Botanical Society, in London. Dr. Dillenius was president, and Mr. Martyn was secretary. This society kept together till 1726. About this time he became a member of the Royal Society, and now began to apply himself most seduously to the practice of physic. For this purpose he was admitted of Emmanuel College, Cambridge, and kept five terms, with an intention to have proceeded regularly with his degrees, but from peculiar circumstances he was prevented from finishing his design. He had now lived and practised physic in Great St. Helen’s, Bishopsgate Street, during three years; but, finding the air of London disagree with his constitution, he embraced a favourable opportunity which offered of removing to Chelsea, where he practised physic with success and great reputation for above twenty years. In 1733, he was chosen Professor of Botany in the University of Cambridge, where he had given several courses of lectures, and had greatly restored the study of that science. Mr. Martyn, in 1723 (as is stated in a preceding page), married Eulalia, youngest daughter of the Rev. Dr. John King, Rector of Chelsea, by whom he had three sons and five daughters, all of whom were born in Church Street, Chelsea, in the same house wherein their mother was born and died, and in which her father, Dr. King, lived and died. Mrs. Martyn died in 1749, from a cancer in her breast, occasioned by a violent blow given her as she was walking in London. * * * * * In 1750, Mr. Martyn married, secondly, a daughter of Claude Fonnereau, Esq., merchant of London, who bore him one son and survived him. Soon after this he retired to Streatham, Surrey. In 1761 he resigned his professorship of botany; and some time after presented to the University his library of botanical books, amounting to above 200 volumes. * * * * *