The cover image was created by the transcriber and is placed in the public domain.

Copyright, Ewing Galloway

The Majestic, Largest Steamship in the World

Popular Science Library

EDITOR-IN-CHIEF

GARRETT P. SERVISS

AUTHORS

ARRANGED IN SIXTEEN VOLUMES WITH A HISTORY OF SCIENCE, GLOSSARIES AND A GENERAL INDEX

ILLUSTRATED

VOLUME SIXTEEN

P. F. COLLIER & SON COMPANY

NEW YORK

Copyright 1922

By P. F. Collier & Son Company

MANUFACTURED IN U. S. A.


HOW TO USE THE POPULAR SCIENCE LIBRARY
BY
GARRETT P. SERVISS
HISTORY OF SCIENCE
BY
ARTHUR SELWYN-BROWN
GENERAL INDEX

P. F. COLLIER & SON COMPANY
NEW YORK