the Master grade, that of Companion having been produced during his absence, but following the indications he had given, by Elias Ashmole. In 1650 he began to issue his Rosicrucian and alchemical writings, namely, Anthroposophia Theomagica and Anima Magica Abscondita, followed by Lumen de Lumine and Aula Lucis in 1651. The Rosicrucian Grand Master Andreæ died in 1654, and was succeeded by Thomas Vaughan, whose next step was the publication of his work, entitled "Euphrates, or the Waters of the East." In 1656 he is said to have published the complete works of Socinus, two folio volumes in the collection, entitled Bibliotheca Fratrum Polonorum. Three years later appeared his "Fraternity of R.C.," and in 1664 the Medulla Alchymiæ. In 1667 he decided to publish the "Open Entrance," the MS. of which was returned to him by the editor Langius after printing, and was subsequently annotated in the way I have previously mentioned. During the early days of the same year Vaughan converted Helvetius, the celebrated physician of the Hague, who in his
