an alchemist of Hamburg, in the end of the seventeenth century, who in his researches after the "philosopher's stone" is said to have accidentally discovered phosphorus. (F. Hoefer, Hist. de la Chimie, ii. 201.) He concealed the process; but it was discovered soon after by Kunckel, and hence it has been called Kunckel's phosphorus.

Gerard, a learned divine of the Reformed religion, was born at Amsterdam in 1626, and was successively minister in several places of the Netherlands. His works were numerous and popular, especially a History of the Reformation in the Low Countries, Amsterdam, 1671-74, in 4 vols. 4to, which was translated into English, and published at London in 1719, 8vo; The Life of Admiral de Ruyter; An Account of the Trial of Barneveld, Hoogerbeets, and Grotius, in 1618, Rotterdam 1619, 4to; and Oratio Funeris Cornelli Hoghtii, Satrapae Mudani, Amsterdam 1648; all, except the last, in the Flemish language. Brandt died at Rotterdam in 1685.

Sebastian, a man of letters of the fifteenth century, author of a rare treatise entitled Stultifera Navis, illustrated with curious woodcuts, printed in 1490. Several authors have erroneously represented him as the artist of the engravings, but they seem to be the work of Jan Bergmann.