“What is it, Uncle George?” both boys asked at once. “It is a mass of frog’s eggs, called the spawn of the frog,” their uncle replied. “Now, Frank, hold the jar over the water while I try to pour it in.” It was no easy matter getting it into the jar. It fell back into the pond several times before it was at last got in the jar. “There,” said Uncle George, as he placed the jar, now filled with frog spawn, upon the bank. “Now, let us go to another part of the pond and look for something else. “Keep quite still and look into the water. That is the only way to study pond life. If you move about you will see very little. Now tell me if you see anything moving at the bottom of the pond.” “I see things like little pieces of stick moving slowly about,” said Tom in a whisper; “but perhaps it is the water that is moving them.” “Not a bit of it,” said Uncle George. “They are not pieces of stick. There is a living creature inside each of them. We must have some of them, Tom. They are very interesting creatures.” And Uncle George put his hand carefully down and picked several of them up. “These are caddis ‘worms,’” said Uncle George. He placed them in the second jar, and filled it up with water. Tom then saw that each of the “sticks” was really a little house, in which was an insect of some sort. The cases were built of all kinds of odds and ends, glued together by the clever creatures that lived inside them. Some were built of little pieces of rush or water-weed, others of tiny shells, and others of very small stones. Each case was open at one end, and from this end the little dweller came almost half-way out. They could see his head, his legs, and the fore part of his body as he moved along, dragging his little house after him. “Uncle George, come here please,” Frank shouted from the other side of the pond. “Oh, such a funny animal—a fish with legs.” “A fish with legs?” said Uncle George, laughing. “Oh, we must come and see that.” “Why, that isn’t a fish, Frank. It is a newt.” And Uncle George put in the net to catch him. But the creature was too quick for him. It darted out of sight. “Here are two others. Oh, such big ones,” said Tom, in a loud whisper. This time Uncle George was luckier. When he drew up the net there were two large creatures like lizards in it. “This is a lucky find, boys,” said their uncle. “Great crested newts, and what beauties they are!” The boys were surprised to see him take one of the newts out of the net in his hand. He turned them over and looked at them closely before putting them into the jar. “Aren’t you afraid they will bite you, Uncle George?” Tom asked. “No, they cannot bite, and for a very good reason. They have got no teeth. They are most harmless creatures. “But we must be getting home, boys. We have done well for our first visit to the pond. I will tell you all about what we have found when we get home, and you must watch them closely for yourselves.”