Stained Glass Work: A text-book for students and workers in glass by Whall

You are to know that stained glass means pieces of coloured glasses put together with strips of lead into the form of windows; not a picture painted on glass with coloured paints.

You know that a beer bottle is blackish, a hock bottle orange-brown, a soda-water bottle greenish-white—these are the colours of the whole substance of which they are respectively made.