Mr. Dickson was born of humble parents, and came early in life, from Scotland, his native country, to London. For some time he worked as a gardener in the grounds of a considerable nurseryman at Hammersmith, where he was occasionally seen by Sir Joseph Banks, who took notice of him as an intelligent young man. Quitting this situation he lived for some years as gardener in several considerable families: after which he established himself in London as a seedsman; and has ever since followed that business with unremitting diligence and success. Having an ardent passion for botany, which he had always cultivated according to the best of his means and opportunities; he lost no time in presenting himself to Sir Joseph Banks, who received him with great kindness, encouraged him in his pursuits, and gave him access to his valuable library. He thus obtained the free use of one of the most complete collections on Botany and Natural History, which has perhaps, ever yet been formed; and which, through the liberality of its possessor, has contributed in a greater degree to the accommodation of scientific men, and the general advancement of science than many public establishments. Such leisure hours as Mr. Dickson could command from his business, he devoted to an assiduous attendance in this library or to the perusal of scientific books obtained from thence. In process of time he acquired great knowledge and became eminent among the English Botanists; and is now known in Europe among the proficients in that science as one of its most successful cultivators, and the author of some distinguished Works. At an advanced period of life he is still active in business, and continues to pursue his botanical studies with unabated ardour and assiduity. [Footnote: Mr. Dickson is a Fellow of the Linnæan Society, of which he was one of the original founders: and also Fellow and Vice President of the Horticultural Society. Several communications from him, appear in different volumes of the Linnæan Transactions; but he is principally known among Botanists by a work entitled, "Fasciculi Quatuor Plantarum, Cryptogamicarum Britanniæ." _Lond._ 1785-93; in which he has described upwards of four hundred plants not before noticed. He has the merit of having directed the attention of the Botanists of this country to one of the most abstruse and difficult parts of that science; to the advancement of which he has himself, very greatly contributed.]