“I guess the folks will suspect something,” answered Billy, “when they see us digging and spading, but they won’t for a moment think of all we’re planning to do.”

“They can’t help seeing things grow,” Billy went on, “but how little they’ll expect you to come in some day with radishes and lettuce from your own garden.”

“You’re just like Feather Flop!” exclaimed Mary Frances.

“Well, I like that!”

“I mean,” Mary Frances caught her breath, “I mean you think only of the vegetables, and forget that I will bring in a beautiful bouquet of flowers for the table.”

“Oh, to be sure,” nodded Billy, “but you won’t have either unless we begin the next lesson. The first thing after making out the list, so our professor told us, is to understand about the soil. He said that after knowing what to plant, we must learn how to plant. So let us go have a look at the soil near the play house.”

In front of the play house, Billy caught up a handful of earth.

“Listen, Mary Frances,” he said, earnestly, “let us examine this closely. To test the soil is the most important point in gardening, as you will readily see after you have heard—

GARDEN LESSON No. 3