"I should think some weeds would make their seeds look like flower seeds, to fool people." "Well, that is just about what they do. There are cockle seeds in the wheat, and so nearly the same size that the threshing-machine will not take them out, and there are many little plants in the grass that have seeds so nearly like those of the grass itself that we are obliged to sow them with the grass seed. So, you see, men, too, become servants of the wise, persevering weeds. Certain beans and grains have been carried by water, and have been known to be brought across stretches of the sea to be scattered and planted upon a new shore." "How many kinds of seeds are there?" asked Davy. "About as many as plants, Davy." "I don't mean that. I mean how many principal kinds--like flowers, you know--they are Exogens and Endogens." "Oh, I see. You mean classes. Well, I suppose we might say two, fleshy and dry. Then we might divide the dry into seeds and nuts, and the fleshy into fruits and vegetables." Davy and Prue were both thinking. "I suppose my beans are dry," Davy said at last. "Yes, of course." "But we ate them green, and they were not dry then." "That was before they were ripe. There are a number of things that are fleshy when eaten green, that become pods or hulls when the fruit is really ready to gather. Of course, there are fruits and nuts and vegetables that, like flowers, are hard to put in any class. Take the almond--you would call that a nut, of course." "I just love almonds," said little Prue. "And aren't they nuts?" asked Davy. "Yes, the almond is a nut, but you would hardly call the peach a nut; yet they grow exactly alike, except that the outside of the almond is tough and not fit to eat. The walnut is a nut, too, of course, but the hull is quite fleshy, even after the nut is ripe; and there are certain sorts of foreign plums that have a sweet kernel, so they are really fruit and nut in one. But I think we shall have to go nutting next week, and then we can tell more what we think about them." "Nutting! Oh, yes, we'll go nutting!" cried little Prue. "And we'll take baskets, and Mamma, and stay all day and bring home just bushels." "We must take plenty of dinner in the baskets," said Davy, who remembered one time when the dinner had been less than he thought it should be. So then they ran into the house to put away their envelopes of seeds, and to tell the news. II THERE ARE BITTER NUTS AND SWEET ONES HOW splendid it was in the October woods. Some of the trees were almost bare, some of them were a fine russet brown, and some were all crimson and gold; and the gold was so beautiful against the blue sky that it seemed to Davy and Prue that October, after all, might be the very best month of the year.