The following brief Treatise originated in the "LECTURES UPON THE MANUFACTURE OF FLINT GLASS, AND THE CURIOSITIES OF GLASS-MAKING," which I have had the honour to deliver at the Royal Institution.

In collecting materials for this Lecture, I found it desirable to examine a variety of evidences of the antiquity of the Art of GLASS-MAKING, when I at once became impressed with the interest and importance of such memorials in illustrating the history and progress of the invention. Among such treasures I number the exhumed relics in the British Museum, and similar depositories of Art upon the Continent. In the former truly national establishment, and more especially in the private specimens of ancient glass, under the care of Mr. Doubleday, and the curator of the Medal Department of the British Museum, I acquired invaluable aid in my researches. It also affords me much pleasure to acknowledge my obligation to the Marquis of Northampton, Mrs. Richardson Aldjo and Mr. Aldjo, Mr. Charles Roach Smith, Mr. Hamilton,