Title: All About Coffee
Author: William H. Ukers
PREFACE
Seventeen years ago the author of this work made his first trip abroad
to gather material for a book on coffee. Subsequently he spent a year in
travel among the coffee-producing countries. After the initial surveys,
correspondents were appointed to make researches in the principal
European libraries and museums; and this phase of the work continued
until April, 1922. Simultaneous researches were conducted in American
libraries and historical museums up to the time of the return of the
final proofs to the printer in June, 1922.
Ten years ago the sorting and classification of the material was begun.
The actual writing of the manuscript has extended over four years.
