Historic Inventions

Historic Inventions

By RUPERT S. HOLLAND

_Author of “Historic Boyhoods,” “Historic Girlhoods,” “Builders of United Italy,” etc._

PHILADELPHIA GEORGE W. JACOBS & COMPANY PUBLISHERS

Copyright, 1911, by GEORGE W. JACOBS AND COMPANY _Published August, 1911_

_All rights reserved_ Printed in U.S.A.

_To J. W. H._

CONTENTS

I. GUTENBERG AND THE PRIN...