JUST PUBLISHED, PRICE HALF-A-CROWN, VOL. I. of the POLYTECHNIC LIBRARY, Neatly printed in 18mo. and bound in Cloth, containing THE ART OF GLASS-BLOWING, Or Plain Instructions for Making the CHEMICAL & PHILOSOPHICAL INSTRUMENTS WHICH ARE FORMED OF GLASS; Such as BAROMETERS, THERMOMETERS, HYDROMETERS, Hour-Glasses, Funnels, Syphons, TUBE-VESSELS FOR CHEMICAL EXPERIMENTS, TOYS FOR RECREATIVE PHILOSOPHY, &c. BY A FRENCH ARTIST. ILLUSTRATED BY UPWARDS OF ONE HUNDRED FIGURES, Elegantly engraved on Copper plates.

Artists and Students of the Experimental Sciences will find this work adapted to aid them effectually in the economical preparation of their Apparatus; and persons who would willingly occupy their leisure hours in practising the charming art of working Glass and Enamels with the Blowpipe, but who have hitherto been deterred by the anticipated expense of the instruments, and the imaginary difficulties of the undertaking, are taught herein the simplest, most expeditious, least expensive, and most effectual methods of working Glass into every variety of useful or fanciful device.

PUBLISHED BY BUMPUS & GRIFFIN, SKINNER-STREET, LONDON; R. GRIFFIN AND CO. GLASGOW; AND STILLIES, BROTHERS, EDINBURGH.