GIOVANNI BATTISTA DELLA PORTA. _Magia Naturalis, sive de Miraculis Rerum Naturalium._ Naples, 1558. Revised and enlarged edition. Naples, 1589. _Natural Magic._ London, 1657. (In this English translation the author’s name is given an English form--John Baptista Porta.) DANIELLO BARBARO. _La Pratica della Perspettiva._ Venice, 1569. GIOVANNI BATTISTA BENEDETTI. _Diversarum Speculationum Mathematicarum et Physicarum Liber._ Turin, 1585. CHAPTER V GEMMA (REINERUS) FRISIUS. _De Radio Astronomico et Geometrico Liber._ Antwerp, 1545. ERASMUS REINHOLD. _Theoricae Novae Planetarium._ Edited by Georgius Peurbachius. Paris, 1553. JOHANNES KEPLER. _Ad Vitellionem Paralipomena._ Frankfort, 1604. _Dioptrice._ 1611. FRANÇOIS D’AGUILON. _Opticarum Libri Sex._ Antwerp, 1685. CHAPTER VI ATHANASIUS KIRCHER. _Vita admodum reverendi P. Athanasii Kircheri, Societ. Jesu_, vir toto orbe celebratissimus. 1684. The Latin autobiography of Athanasius Kircher, edited by Jerome Langenmantel (Hieronymus Ambrosius Langenmantelius). _Ars Magna Lucis et Umbrae._ Rome, 1646. Second edition. Amsterdam, 1671. Numerous other books by Kircher on many subjects. See Kircher’s bibliography in _La Bibliothèque des Ecrivains de la Compagnie de Jésus_, by Augustin and Aloysius de Backer, and _Bibliothèque de la Compagnie de Jésus_ by Charles Sommervogel. GEORGE DE SEPIBUS VALESIUS. _Romani Collegii Societatis Jesu Musæum._ _Celeberrimum._ Amsterdam, 1678. _Musæum Kircherianum in Romano Soc. Jesu Coliegio._ Rome, 1707. CHAPTER VII GASPAR SCHOTT. _Magia Universalis Naturæ et Artis._ Würzburg, 1658–1674. CLAUDE FRANÇOIS MILLIET DE CHALES. _Cursus seu Mundus Mathematicus._ Lyons, 1690. JOHANN ZAHN. _Oculus Artificialis Teledioptricus sive Telescopium._ Nuremberg, 1685. _Specula Physico-Mathematico-Historia Notabilium ac Mirabilium Sciendorum._ Nuremberg, 1696. CHAPTER VIII PIETER VAN MUSSCHENBROEK. _Physicæ expérimentales._ Leyden, 1729; Venice, 1756. _Cours de Physique Expérimentale et Mathématique._ Paris, 1769. ABBÉ GUYOT. _Nouvelles Recréations Physiques et Mathématiques._ Paris, 1770. WILLIAM HOOPER. _Rational Recreations._ London, 1774. Second edition, 1782. CHAPTER IX ETIENNE GASPARD ROBERT (ROBERTSON). _Mémoires Récréatifs, Scientifiques et Anecdotiques du Physicien-Aéronaute._ Paris, 1831–33. WILLIAM RITCHIE. “Proposal for Improving the Phantasmagoria,” _Edinburgh Journal._ 1825. CHAPTER X JOHN AYRTON PARIS (Published anonymously) _Philosophy in Sport Made Science in Earnest._ London, 1827. DAVID BREWSTER. _A Treatise on the Kaleidoscope._ Edinburgh, 1819.