CANADA: THE COPP CLARK CO. LTD., TORONTO
UNITED STATES: D. VAN NOSTRAND CO., NEW YORK
1906

[_All rights remain with Scott, Greenwood & Son_]



Transcriber's Note: Underscores around words indicates italics while an
underscore and curly brackets in an equation indicates a subscript.




PREFACE


The subject-matter in this little book is the substance of a series of
Lectures delivered before the Hat Manufacturers' Association in the
years 1887 and 1888.

About this period, owing to the increasing difficulties of competition
with the products of the German Hat Manufacturers, a deputation of Hat
Manufacturers in and around Manchester consulted Sir Henry E. Roscoe,
F.R.S., then the Professor of Chemistry in the Owens College,
Manchester, and he advised the formation of an Association, and the
appointment of a Lecturer, who was to make a practical investigation of
the art of Hat Manufacturing, and then to deliver a series of lectures
on the applications of science to this industry. Sir Henry Roscoe
recommended the writer, then the Lecturer on Chemical Technology in the