"Yes, but what is it," said Stella, in her quietly patient way.

"You go out into the field," began Marjorie, "and you gather heaps
and heaps of pennyroyal,--you take baskets, you know, and gather
just pecks of it. Then you take it home and you put it in pails or
tubs or anything with a lot of water. And then you leave it about
two days, and then you drain it off, and then it's pennyroyal
extract."

Marjorie announced the last words with a triumphant air, but her
hearers did not seem very much impressed.

"What then?" asked Molly, evidently awaiting something more
startling.

"Why, then, you put it in bottles, and paste labels on, and take
it all around and sell it to people. They love to have it, you
know, for mosquitoes or burns or something, and they pay you quite
a lot, and then you have the money for charity."

The artistic possibilities began to dawn upon Stella.

"Yes," she said, "and I could make lovely labels, with fancy
letters; and you and Molly could paste them on, and we could tie
the corks in with little blue ribbons, like perfumery bottles."

"And we'll each bring bottles," cried Molly, becoming interested;
"we have lots at our house. Let's start out now to gather the
pennyroyal. We're not so awfully dressed up. This frock will wash,
anyway."