o those who either could not
afford valuable stones or did not wish the care of them. The imitation
pearls were especially fine, and by no means cheap either, as Hannah
soon found out when she attempted to purchase a small string.

But many as were the wonderful sights in France, the continent had soon
to be left behind, and almost before the travelers realized it the
Channel had been crossed and they stood upon English soil. As Uncle
Bob's time was limited they went direct to London, and when once there
one of the first things that Giusippe wished to see were the mosaics in
St. Paul's Cathedral of which he had heard so much. So they set out. On
reaching the church Giusippe regarded it with awe. How unlike it was to
his well loved St. Mark's. And yet how beautiful!

"These mosaics, like the ones we shall see at the Houses of Parliament,
were not first made and then put up on the walls as were those such as
Salviati and other Venetians shipped from Venice," explained Mr. Cabot.
"No, these were made directly upon the walls, the pieces of glass being
pressed into prepared areas of cement spread thickly upon the brickwork
of the building. The designs are simple, large and effective figures
being preferred to smaller and more intricate patterns. Millions of
pieces have been used to make the pictures, and if you will notice
carefully you will see that they have the rough surface which catches
the light as do all the early Venetian mosaics."

Giusippe nodded.

"There must also be some fine old glass windows in London," he
speculated. "Aren't there, Mr. Cabot?"

"Yes, some varieties that you did not have in Venice, too," declared
Uncle Bob. "You see other people did invent something, Giusippe. Here
in England in some of the older houses there are windows made of tiny
pieces of white glass leaded together; people were not able at that
time to get large sheets of glass such as we now use, and I am not sure
that these windows made of small leaded panes were not prettier. Then
you will find other windows made from what we call bull's eye glass.
These bull's eyes were the centers or waste from large discs of crown
glass after all the big pieces possible had been cut away. As most
glass comes now in sheets crown glass is little made, and therefore we
find bull's eyes rare unless manufactured expressly to imitate the
antique roundels."

"Of course there is lots of old stained glass in England, isn't there,
Uncle Bob?" Jean vent