Electro-Mechanical Series
GAS AND PETROLEUM
ENGINES
TRANSLATED AND ADAPTED FROM THE FRENCH
OF HENRY DE GRAFFIGNY
AND EDITED BY
A. G. ELLIOTT, B.Sc.
LONDON
WHITTAKER AND CO.
2 WHITE HART STREET, PATERNOSTER SQUARE
New York: 66 Fifth Avenue
1898
Richard Clay & Sons, Limited,
London & Bungay.