Well, yes, but not like our teeth. Sometime you must see the mouth parts of the grasshopper under the microscope. They are very interesting. Mollie says the locust has a cape on. John says the cape is the top of its thorax. [Illustration] Frank has been counting its legs; he says it has six. See it walk. It uses all six legs to walk with. But it does something besides walk with its hind legs. Yes, it jumps with them. How long and large they are! Now watch it jump. See! It draws those long hind legs close up to its body, then suddenly straightens them out--and away it goes as though it had been shot from a spring board. John says its hind legs work just like a spring, and so they do. It can leap several times the length of its body. Amy thinks it should be called a grass-jumper instead of a grasshopper. Suppose we all look carefully at the locust's long hind leg, segment by segment. What, John? You do not know what a segment is? Well, a segment is the part between two joints. The joints are where the leg bends, you know. May proposes that we draw a picture of the long hind leg. It will be fun to try. There are two tiny segments close to the body. If you are not careful, you will find only one. You must look sharp to see both of them. How well Charlie has drawn his! He has both the little segments. [Illustration] The one next the body we will mark I, and we will call it the coxa. The next little one we will mark II, and that we will call the trochanter. The long, strong one, III, we will call the femur. The next one, long and narrow, we will mark IV, and call the tibia. All the rest of the leg, made of several short segments, we will call the tarsus, and we will mark it V. Now how are we to remember all those hard names? Here is a jingle that perhaps will help us:-- _Coxa_ first, and then _trochanter_, Number three the _femur_ stands, After this, the long, straight _tibia_, And last of all the _tarsus_ comes. Now let us see who can learn it first. Charlie says we are taking a good deal of trouble over the hind legs of a grasshopper. [Illustration] Very true, Mr. Philosopher, but let me tell you something. When we have learned the names of the segments in the grasshopper's hind leg, we have learned the names of the segments in the legs of all insects. You see all the legs are made on one common plan, and it is very convenient, as you will soon see, to have the parts named. What a fine set of drawings of the grasshopper's hind leg we have! Why do you suppose the coxa and trochanter are so small? Yes, John, it is in order that the leg can move easily. The grasshopper can turn its leg in almost any direction because of these small upper segments. It can put its leg up over its head if it wants to. Next to the little coxa and trochanter is the longest and largest segment in the grasshopper's leg; I suppose nobody remembers its name. Listen to little Nell,--"number three the _femur_ stands."