W. And the lime is absorbent too, so, it would help the clay to suck in the water. Has lime any other uses, papa ? P. Yes-many more. You may come with me to see the bricklayer, who is building that wall on the other side of the field. Do you see that he has a heap of quick lime before him, and that he is pouring water on it? L. The lime is swelling, papa, it seems to smoke; and, I'll feel it. It feels very hot. tar. Ion. Yes, and that makes morBut, I never knew before, papa, that water had caloric in it. P. Yes, you will find out one day that everything contains caloric -even ice. Let us now sit down, and make the lesson. Lesson 4. LIME (continued). (5.) Although lime is never found pure, pure lime may be procured by burning chalk in a kiln, to drive away the carbonic acid and water; it is then called quick lime. P. This heat is caused by the water. The water is being changed (6.) Quick lime is white, acrid, from a liquid to a solid state. caustic, and absorbent. It is, thereWhile it is thus changed, it gives fore, useful to cause the animal and up part of its caloric, so it is not vegetable matter in the earth to decay now called quick lime, but slack quickly, and to render clayey and lime. Here is another man mix-stiff earth, more absorbent. When ing some slack lime with sand, and mixed with sand and water, it forms water, and cow's hair. mortar. THE STREAMLET. I SAW a little streamlet flow A thread of silver, soft and slow, The valley smil'd in living green, From noontide heat a friendly screen, Drank of its limpid wave. The swallow brush'd it with his wing, And followed its meandering. And would that I could thus be found, Where'er my footsteps stray; Like that pure stream with tranquil breast, TRIANGLES. P. Suppose, Ion, that you were drawing on a piece of paper, and wanted to enclose a space with lines. How many lines would you want? Ion. Let me try, papa. I want two lines to make an angle, L but now I have made it, one side is left open. I must put another line, A A W. Yes, papa. The one marked No. 2 is larger than the other. P. How many sides are larger? L. Two, papa. The bottom line in No. 2 is of the same size as the bottom line of No. 1. Now, I notice something in No. 1. P. What is it? L. The sides of it are all of the same size-equal. P. That is right. Now, I will tell you something. The Latin word for side, is latus, so, as this triangle is equal-sided, it is called an Equi-lateral Triangle W. But, papa, No. 2 is not equi-lateral, because, only two of -now, the space is shut upand there are three sides, and three angles. L. I can enclose a space with its sides are equal-the long ones. two lines, papa. See! P. But the upper one is curved, Lucy. I should have reminded you that we are only learning about straight lines-so to enclose a space with straight lines, we must make a figure with three sides. This figure, you see, has also three angles, so it is called A TRIANGLE. Look at these triangles carefully, and tell me if you can see any difference between them. P. And this angle is, therefore, named after two Greek words which mean "equal legs." It is called an Isosceles Triangle. Ion. That is a peculiar name, papa. Will you tell me how to spell it, please, and I will write it down on a piece of paper. Now, I have them both Equilateral Triangle, and P. Here is another triangle. How many of its sides are equal? They W. Oh, none, papa! seem to be all unequal. What are we to call this one? P. A triangle with three unequal sides is called a Scalene Triangle. Ion. That is an uglier name than the other one, but I'll write it down. S-k-a-y- skay, l-e-a-n lean P. Oh, stop! It is made of Greek. It is not spelt so. You must write it S-c-a-l-e-n-e, Scalene. Lon. Thank you, papa. Well! How could I think of spelling it so! That is because it is Greek. What queer people those Greeks must have been at their spelling! P. Now you may make the lesson-then, I will give you a drawing to do. Lucy. I can make it, papa. Lesson No. 5.-A figure with 3 sides has 3 angles, and is called a TRIANGLE. A triangle with 3 equal sides is called an EQUILATERAL TRI ANGLE. A triangle with 2 equal sides is called an IsosCELES TRIANGLE. And, a triangle with no equal sides is called a SCALENE TRI ANGLE. Ion. It is an equilateral triangle. I never noticed that in our pigeonhouse before. P. And, see what I have done. In order to be quite sure that it is upright, I have made a perpendicular line of dots. It runs, you observe, through the middle. Now, I know that the line is upright. How does it show me that the triangle is upright too? W. Because it runs exactly through the middle of the bottom line, and then, there is just as large a piece of the triangle on the right side, as there is on the left Now, we will begin to make side. drawings with triangles. Here is a drawing of the back of our pigeon-house. What shape is it? P. Do not say the bottom line of the triangle again—say, the base of the triangle, that is the proper name for the bottom line. Ion. I will say what the line does. "It crosses the middle of the base, and cuts the triangle in half." L. How fond you are of the words "such a beauty," Willie ! W. Well, it will be a beauty. You shall see. Now then, the P. Now, who will copy it? sides are equal. Yes, and the W. I will, papa. Oh, do let me, post is in the middle. please. I'll make such a BEAUTY !! | finished! It is P. Then let me look at it, Willie. We shall soon see if it is right. I will draw a perpendicular line from the top through the base. Now, you can see that the triangle is not divided exactly in half. L. No. The left hand side is three times as large as the right hand side. Poor Willie ! W. Why, what is the matter with the drawing? Ion. Nothing, only it is rather ill. It is falling down; and the lines are in the wrong direction. And, then, the triangle,-it is—it is that terrible Greek word, Scalene! THE SENSES. SAY what is it, Eyes, ye see? Tell me, Ears, what ye have heard? Awful thunder; ocean strong, Tell me, busy Hands, I pray, FOR THE 8th Week. TRUTH. MONDAY. JOHN HUSS (Continued). P. How disappointed John Huss must have felt when he found that he had made a mistake, and had given so much hard labour to learn untruth! Yet he could not help it. JESUS CHRIST Was the only Saviour, and he could not teach anything else; for, when he thought of all that Jesus had done for him, he felt that he must tell it to others. Why should he fear the Pope? Whoever speaks the truth, obeys GOD, and God will keep him for ever. And he did preach it to all the people in PRAGUE who would hear him. When the Doctors of the University and the Archbishop heard of it, they tried to stop him, and, at last, declaring that he was a heretic, which means a bad man, they turned him out of the University. W. But why did God allow them to do that? Moral Lesson. looking at him, and thought of his light-he looked at the large crowds of people who were standing around him, and thought of their darkness, so he forgot to feel afraid. He only remembered that Truth was almighty, and stronger than all men;-and as God, who loved him, made him feel love for these people, he preached the history of Jesus once more, with light in his eyes, with eagerness in his look, with a stout heart, and a loud voice. Now, although God was pleased, the Pope and the Priests were very angry. They would have killed him, but God would not allow this yet; so they excommunicated him, that is, they declared that he was a wicked man and not fit to belong to the Church. Ion. That would not hurt him, because it was not true. But, papa, would God ever let him be killed? P. Yes. If God saw that Huss would give up his life rather than the Truth, God would let him do it. God will let you give up anything you like for Truth. P. We cannot tell. God allowed all kinds of things to happen to him, but they only seemed to be misfortunes, for when his conscience told him, "You are doing right," he Suppose, Ion, you meant to give felt sure that God still loved him,up some great pleasure because and was so happy that he could you would not tell a lie-just as not feel any sorrow about "misfor- John Huss gave up the idea of tunes"—his heart had not room for being a great man-you would not that. lose your pleasure. So, with these thoughts of Jesus Christ before him, he could not stop, nor stand still and feel afraid. He tried to preach again in the churches, and again they drove him away. Then he brought his pulpit into the fields and streets. He looked up to God who was W. Why not, papa? 66 P. Because you would give it up to GOD; He would take care of it for you. Jesus Christ told us to lay up treasures" in heaven, and this is one way. John Huss was now driven out of Prague, and was obliged to live |