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DIGGERS IN THE EARTH
EVA MARCH TAPPAN, Ph.D.
_Author of "England's Story," "American Hero Stories," "Old World Hero Stories," "Story of the Greek People," "Story of the Roman People," etc. Editor of "The Children's Hour."_
HOUGHTON MIFFLIN COMPANY
BOSTON NEW YORK CHICAGO
THE INDUSTRIAL READERS
By Eva March Tappan
I. THE FARMER AND HIS FRIENDS. 50 cents.
II. DIGGERS IN THE EARTH. 50 cents.
III. MAKERS OF MANY THINGS. 50 cents.
IV. TRAVELERS AND TRAVELING. 50 cents.
The foregoing are list prices, postpaid
COPYRIGHT, 1916, BY EVA MARCH TAPPAN ALL RIGHTS RESERVED
_First printing April 1916;_ _Reprinted December 1916_
The Riverside Press CAMBRIDGE, MASSACHUSETTS U. S. A.
The four books of this series have been written not merely to provide agreeable reading matter for children, but to give them information. When a child can look at a steel pen not simply as an article furnished by the city for his use, but rather as the result of many interesting processes, he has made a distinct growth in intelligence. When he has begun to apprehend the fruitfulness of the earth, both above ground and below, and the best way in which its products may be utilized and carried to the places where they are needed, he has not only acquired a knowledge of many kinds of industrial life which may help him to choose his life-work wisely from among them; but he has learned the dependence of one person upon other persons, of one part of the world upon other parts, and the necessity of peaceful intercourse. Best of all, he has learned to see. Wordsworth's familiar lines say of a man whose eyes had not been opened,--
"A primrose by a river's brim A yellow primrose was to him, And it was nothing more."
These books are planned to show the children that there is "something more"; to broaden their horizon; to reveal to them what invention has accomplished and what wide room for invention still remains; to teach them that reward comes to the man who improves his output beyond the task of the moment; and that success is waiting not for him who works because he must, but him who works because he may.
Acknowledgment is due to the Lehigh Valley Railroad, Jones Brothers Company, Alpha Portland Cement Company, Dwight W. Woodbridge, the Utah Copper Company, the Aluminum Company of America, the Diamond Crystal Salt Company, T. W. Rickard, and others, whose advice and criticism have been of most valuable aid in the preparation of this volume.
EVA MARCH TAPPAN.
I. IN A COAL MINE 1
II. DOWN IN THE QUARRIES 11
III. HOUSES OF SAND 21
IV. BRICKS, THEIR FAULTS AND THEIR VIRTUES 31
V. AT THE GOLD DIGGINGS 39
VI. THE STORY OF A SILVER MINE 48
VII. IRON, THE EVERYDAY METAL 57
VIII. OUR GOOD FRIEND COPPER 65
IX. THE NEW METAL, ALUMINUM 76
X. THE OIL IN OUR LAMPS 84
XI. LITTLE GRAINS OF SALT 95
LIST OF ILLUSTRATIONS
A STRUCTURAL STEEL APARTMENT BUILDING vi
HOW A COAL MINE LOOKS ABOVEGROUND 5
MINERS AND THEIR MINE 10
OPENING A GRANITE QUARRY 13
BUILDING A CONCRETE ROAD 27
IN A NEW JERSEY BRICK MILL 33
HYDRAULIC GOLD MINING 41
THE STORY OF A SPOON 51
IN THE STEEL FOUNDRY 61
IN A COPPER SMELTER 67
A "MOVIE" OF AN ALUMINUM FUNNEL 79
A CALIFORNIA OIL FIELD 87
[Illustration: A STRUCTURAL STEEL APARTMENT BUILDING