"You've got a good memory. Helen has told me a lot of botanical terms, but I forget them,"

"I try hard to remember everything I hear any one say about flowers or vegetables or planting now. You never can tell when it may be useful," and Dorothy nodded wisely.

"Shall we take up this wake-robin?" asked Ethel Blue.

"Let's not," pleaded Ethel Brown. "We shall find others somewhere and there's only one here."

They left it standing, but when they came upon a growth of wind-flowers there were so many of them that they did not hesitate to dig them freely.

"I wonder why they're called 'wind-flowers'?" queried Ethel Brown, whose curiosity on the subject of names had been aroused.

"I know that answer," replied Ethel Blue unexpectedly. "That is, nobody knows the answer exactly; I know that much."

The other girls laughed.

"What is the answer as far as anybody knows it?" demanded Dorothy.