Can you tell What happens when we telephone? How a telegram gets there? What makes an automobile go? How man learned to tell time? How a moving-picture is made? How a camera takes a picture? How rope is made? How the light gets into the electric bulb? How glass is made? How the music gets into the piano? and hundreds of others that embrace the captivating tales of how man has made use of the wonders of nature and turned them to his advantage and comfort? The Book of Wonders does this with illuminating pictures which stimulate the mind and give a bird’s-eye view of each subject step by step. Where shall such a book begin? Shall it begin with the Story of How Man Learned to Light a Fire--he could not cook his food, see at night, or keep warm without a fire; or should it begin with How Man Learned to Shoot--he could not protect himself against the beasts of the forest, and, therefore, could not move about, till the soil or obtain food to cook until he knew how to shoot or destroy. What was the vital thing for man to know before he could really become civilized? Some means, of course, by which the things he learned--the knowledge he had acquired--could be handed down to those who came after him so that they might go on with the intelligence handed down to them. This required some means of recording his knowledge. Man had to learn to write. Without writing there could be no Book of Wonders, and the book, then, begins naturally with the Story of Mow Man Learned to Write. THE EDITOR. [Illustration: WRITING BY MEXICAN INDIANS THOUGHT TO BE MORE THAN TEN THOUSAND YEARS OLD.] How Man Learned to Write It is a long time between the day of the cave-dwellers, with their instruments of chipped stone, and the present day of the pen. Yet wide apart as are these points of time, the trend of development can with but few obstacles be traced. The story of the pen is a natural sequence of ideas between the first piece of rock scratched upon rock by prehistoric man, and the bit of metal which now so smoothly records our thoughts. There was a time in the unwritten history of man when necessity prompted the invention of weapons, and the minds of these primitive men were concentrated upon this point. But the arts of war did not take up their entire time; some time must have been given to other pursuits. As the mind developed, and as an aid to memory, we find them carving, engraving, incising upon the rocks their hieroglyphics, which took the form of figures of men, habitations, weapons, and the animals of their period. [Illustration: THE STYLUS] How Did Writing First Come About?