THE LIBRARY OF
ORIGINAL SOURCES

EDITORS EDITION

EDITOR-IN-CHIEF OLIVER J. THATCHER
DEPARTMENT OF HISTORY UNIVERSITY OF CHICAGO

Author "Europe in the Middle Ages," "A Short
History of Mediaeval Europe," "A General
History of Europe," "A Sketch of
the History of the Apostolic
Church."

STANFORD LIBRARY

UNIVERSITY RESEARCH EXTENSION

NEW YORK

LONDON
F

CHICAGO

ACI
T4

VIG

Copyrighted 1907

University Research Extension

247639

THE BEGINNING OF CHEMISTRY

150

The Discovery of Carbonic Acid Gas, "Fixed Air"

272