Perhaps I ought to tell you how to know a beetle when you see one. This sounds easy enough, but it is not quite as easy as it sounds. All beetles have six legs (beetles' bodies are divided into three parts, and the legs grow out of the middle part); nearly all of them have strong, horny covers for their wings, and all of them have their skeletons outside. This sounds a very topsy-turvy arrangement, but it is quite true. We have our bones inside, and our flesh outside, but beetles have their bones outside and their flesh inside. Sometimes you may see beetles crushed flat in the road, but often they are trodden on or run over without being killed; and the reason for this is that their hard, outside skeletons prevent their soft insides from being altogether squashed up. Once I ran over a Stag-beetle on my bicycle--it was nearly dark at the time, and I was over him before I could get out of his way. Now a big Stag-beetle weighs about an eighth of an ounce, and I am rather a heavy person--indeed, with my bicycle thrown in I should think that I must weigh over two hundredweight, which is about thirty thousand times as much as the Stag-beetle. You can imagine how surprised I was to find that the Stag-beetle was not hurt. I ought to tell you, though, that the road was soft, and that my bicycle-tyres were not blown up hard, so perhaps the Stag-beetle did not get all my weight on his back--but, anyhow, it was a wonderful escape for him, wasn't it? [Illustration: THE STAG-BEETLE This is the one that I ran over on my bicycle] The two largest beetles in this country are the Stag-beetle and the Great Black Water Beetle. I am not sure which should really be called the larger of the two, for it seems hardly fair to count the Stag-beetle's antlers, and if we leave these out, I fancy that the Great Black Water Beetle has the bigger body. It is curious that these two large beetles should be such quiet, easy-going things, and that they should never dream of eating beetles smaller than themselves. [Illustration: THE FEMALE STAG-BEETLE, WHOSE ANTLERS ARE QUITE SHORT, AND TWO STAG-BEETLE GRUBS] [Illustration: THE GREAT WATER BEETLE Who looks as if he was silver-plated underneath]