gle piece
nothing would do but they must have the others. They therefore bought
the rest, had the vase mended, and set it up here where people can see
it. It cost a great deal of money to purchase it."

"I think it is splendid of museums and of rich people to buy such
things and put them where every one can look at them!" exclaimed Jean.
"None of us could afford to and if those who owned them just kept them
in their own houses we should never see them at all."

"Yes. Remember that, too, in this day when there are so many persons
who begrudge the rich their fortunes. Remember if there were not
individuals in the world who possessed fortunes the poor would have far
less opportunity to see art treasures of every sort. And that is one
way in which those who are rich and generous can serve their country.
There are many different methods of being a good citizen, you see."

Mr. Cabot took out his watch and glanced at it thoughtfully.

"I think we shall have time to see just one thing more, and then we
must go back to the hotel. We have examined all kinds of glass
objects--so many, in fact, that it would seem as if there was no other
purpose for which glass could be used. And yet I can show you something
of which, I will wager, you have not thought."

"What is it?" questioned the two young people breathlessly.

Full of curiosity, Uncle Bob led them through several corridors until
he came to a large room that they had not visited. He conducted them to
its farther end and paused before a large sand glass.

"Before the days of clocks and watches," he began, "such glasses as
these were much in use for telling the time. Throughout the sixteenth
and seventeenth centuries they had them in almost all the churches,
that the officiating clergyman might be able to measure the length of
his sermon."

Jean laughed.

"I wish they had them now," she declared mischievously.

"Sometimes I do," smiled Uncle Bob. "It is said the glasses were
originally invented in Egypt. Wherever they came from, they certainly
were a great convenience to those who had no other means of telling the
time. Charlemagne, I have read, had a sand glass so large that it
needed to be turned only once in twelve hours. Fancy how large it must
have been. At the South Kensington Museum is a set of four large sand
glasses evidently made to go together. Of course you have seen, even in
our day, hour, quarter-hour, and minute glasses."

"I used to practice by an hou