interesting article involving hatmaking from 1906

THE CHEMISTRY
OF
HAT MANUFACTURING
LECTURES DELIVERED BEFORE THE HAT MANUFACTURERS' ASSOCIATION
BY
WATSON SMITH, F.C.S., F.I.C.
THEN LECTURER IN CHEMICAL TECHNOLOGY IN THE OWENS COLLEGE, MANCHESTER AND LECTURER OF THE VICTORIA UNIVERSITY
REVISED AND EDITED
BY
ALBERT SHONK
WITH SIXTEEN ILLUSTRATIONS