I have almost got through my story, so do not be impatient if I tell you one thing more, and that is how Jack used to think about what he saw and read. I shall give you an instance. One day, he was strolling through the fields, at a distance from any house, when he saw a large hawk pounce down upon a rabbit. The talons of the bird pierced the very heart of the little animal, and it was almost instantly killed, and borne away by the destroyer, struggling however in the pangs of death. As it was carried over his head, Jack noticed the four legs of the rabbit, and he began to reflect upon the fact that a hawk has two legs, and a rabbit four. Having made this comparison, he proceeded to make others; and now it struck him, for the first time, that the whole feathered race are two-legged creatures, while rabbits, squirrels, cats, dogs, pigs, foxes, lions, tigers, cows, horses, and elephants are four-legged creatures. As he was thus ruminating upon this matter, he happened to take up his book, and he there found that the animal creation is divided into groups――such as orders and classes, &c., according to their formation. He learned that four-legged animals, called _quadrupeds_, form one great class; that birds form another class; fishes another; reptiles another; and insects still another. And in pursuing this subject, he found that each class was divided into many families or kinds. Among the quadrupeds, he found the family of cats, including old puss in the corner, as well as the lynx, cougar, leopard, tiger, and lion. He learned that among the bears, there are many kinds, and also among the wolves and foxes, and all other races of animals. And now, a new source of interest grew up in Jack’s mind. This _classifying_ of animals became intensely interesting. He loved to compare one kind with another; to note the resemblances and differences; to observe the influence of climate, and see how nature had diversified her works, so as to adapt everything to the purpose it was designed to accomplish. Thus, at every step, his knowledge increased, and became more and more permanently fixed in his mind; while the interest he took in study, was enhanced even in a greater degree. Sketches in Egypt. In a former number of our Museum, we have given some account of the wonderful things, displaying the manners and customs of the Egyptians, and setting forth many points of history, which have been discovered among the ruins of their ancient cities and temples. We now give a few passages, showing some of the manners and customs of the present inhabitants of Egypt. IRRIGATION.