Reply to "The Art of Louis Comfort Tiffany"

Tiffany used opalescent glass in a variety of colors and textures to create a unique style of stained glass. This can be contrasted with the method of painting in glass paint or enamels on colorless glass that had been the dominant method of creating stained glass for several hundred years in Europe. Use of the colored glass itself to create stained glass pictures was motivated by the ideals of the Arts and Crafts movement and its leader William Morris in England. Fellow artist and glassmaker John La Farge was Tiffany's chief competitor in this new American style of stained glass. Both La Farge and Tiffany had learned their craft at the same glasshouses in Brooklyn in the late 1870’s.

http://en.wikipedia.org/wiki/Louis_Comfort_Tiffany