Seven hundred years of glass-making in Venice produced an experience that was useful to the rest of Europe and finally to America. Much millefiore glass has been manufactured in the United States. The Pennsylvania Museum in Philadelphia is especially rich in examples of it. There are also many private collectors of millefiore glass in this country, some collecting specimens in general, others confining themselves to examples of American manufacture, while others specialize in millefiore paper-weights already referred to. The late Dr. Edwin Atlee Barber, a noted authority on American glass, gave in the Pennsylvania Museum Bulletin the following information concerning the process of its making: The glass rods used in the preparation of modern millefiori glass are usually made in metal moulds of comparatively large size. The interior may be circular or scalloped. Into one of these moulds ropes of colored glass are arranged in the pattern desired, to which, when taken out, two workmen attach iron rods, one at each end of the mass, and draw it out until it is of the requisite slenderness. The design retains its exact proportions through the entire length and is as perfect in a rod of an eighth of an inch diameter as in the original thick cylinder. If an animal is to be represented the mould is cut into the exact shape and when the glass is released and drawn out each detail of legs, tail, ears and other parts is uniformly reproduced in solid color so that even in the tiniest representation of the figure every part appears to be perfectly formed. Sometimes a cane will be composed of many threads of various colors and designs, each of which has been formed in this manner, arranged around a central rod and welded together. When the rods are finished they are broken into small pieces, or cut into uniform lengths or into thin slices, according to the sort of paper-weights or other objects to be made. Into an iron ring the size of a paperweight a cushion of molten glass is dropped and while soft, the sections of rods are laid on the surface or stuck in it side by side in a regular pattern, the tops of the rods being pressed into a rounded or convex form. Over all more of the melted glass is poured and the surface rounded into hemispherical shape by means of concave spatula of moistened wood. The last process consists in polishing the surface of the curved top and the flat base after the ball has been again heated.