VAUX, William Sansom, mineralogist, born in Philadelphia, Pennsylvania, 19 May, 1811 ; died there, 5 May, 1882. He was a great-nephew of George Vaux, of London, a noted medical practitioner, who died in the early part, of the century. When a boy he acquired a strong taste for mineralogy, and he pursued the study of that science and later that of archaeology with enthusiasm throughout his life. He acquired extensive mineralogical and archaeological collections, which he bequeathed to the Philadelphia academy of natural sciences, with a handsome endowment for their preservation. These collections are arranged in the academy in a separate department, and are known as " the William S. Vaux collection." Mr. Vaux was president of the Zoological society of Philadelphia, and from 1864 until his death, with the exception of 1874-'5, was vice-president of the Philadelphia academy of natural sciences. He was one of eight founders of the Numismatic and antiquarian society, its senior vice-president, and from 1871 till his death treasurer of the American association for the advancement of science, of which society he had been a member since its foundation.