Edison: His Life and Inventions
img img Edison: His Life and Inventions img Chapter 19 EDISON PORTLAND CEMENT
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Chapter 1 EDISON'S PEDIGREE
Chapter 2 BOYHOOD AT PORT HURON, MICHIGAN
Chapter 3 THE YOUNG TELEGRAPH OPERATOR
Chapter 4 ARDUOUS YEARS IN THE CENTRAL WEST
Chapter 5 WORK AND INVENTION IN BOSTON
Chapter 6 THE STOCK TICKER
Chapter 7 AUTOMATIC, DUPLEX, AND QUADRUPLEX TELEGRAPHY
Chapter 8 THE TELEPHONE, MOTOGRAPH, AND MICROPHONE
Chapter 9 THE PHONOGRAPH
Chapter 10 THE INVENTION OF THE INCANDESCENT LAMP
Chapter 11 MEMORIES OF MENLO PARK
Chapter 12 A WORLD-HUNT FOR FILAMENT MATERIAL
Chapter 13 INVENTING A COMPLETE SYSTEM OF LIGHTING
Chapter 14 INTRODUCTION OF THE EDISON ELECTRIC LIGHT
Chapter 15 THE FIRST EDISON CENTRAL STATION
Chapter 16 OTHER EARLY STATIONS-THE METER
Chapter 17 THE ELECTRIC RAILWAY
Chapter 18 MAGNETIC ORE MILLING WORK
Chapter 19 EDISON PORTLAND CEMENT
Chapter 20 MOTION PICTURES
Chapter 21 THE DEVELOPMENT OF THE EDISON STORAGE BATTERY
Chapter 22 MISCELLANEOUS INVENTIONS
Chapter 23 EDISON'S METHOD IN INVENTING
Chapter 24 THE LABORATORY AT ORANGE AND THE STAFF
Chapter 25 EDISON IN COMMERCE AND MANUFACTURE
Chapter 26 THE VALUE OF EDISON'S INVENTIONS TO THE WORLD
Chapter 27 THE BLACK FLAG
Chapter 28 THE SOCIAL SIDE OF EDISON
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Chapter 19 EDISON PORTLAND CEMENT

NEW developments in recent years have been more striking than the general adoption of cement for structural purposes of all kinds in the United States; or than the increase in its manufacture here. As a material for the construction of office buildings, factories, and dwellings, it has lately enjoyed an extraordinary vogue; yet every indication is

            
            

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