Rubber hand stamps
AND THE
Manipulation of Rubber
A PRACTICAL TREATISE ON THE MANUFACTURE OF INDIA RUBBER HAND
STAMPS, SMALL ARTICLES OF INDIA RUBBER, THE HEKTOGRAPH,
SPECIAL INKS, CEMENTS, AND ALLIED SUBJECTS
BY
T. O’CONOR SLOANE, A.M., E.M., Ph.D.
Author of
“Home Experiments in Science,” “Arithmetic of Electricity,” etc.
FULLY ILLUSTRATED
NEW YORK
NORMAN W. HENLEY & CO.
150 NASSAU STREET
1891
Copyright, 1890, by
NORMAN W. HENLEY & CO.