criticism, and to Mr. Walter Barrow for reading
the proofs. The members of the staff to whom I am indebted are Mr. W.
Pickard, Mr. E.J. Organ, Mr. T.B. Rogers; also Mr. A. Hackett, for whom
the diagrams in the manufacturing section were originally made by Mr.
J.W. Richards. I am grateful to Messrs. J.S. Fry and Sons, Limited, for
information and photographs. In one or two cases I do not know whom to
thank for the photographs, which have been culled from many sources. I
have much pleasure in thanking the following: Mr. R. Whymper for a large
number of Trinidad photos; the Director of the Imperial Institute and
Mr. John Murray for permission to use three illustrations from the
Imperial Institute series of handbooks to the Commercial Resources of
the Tropics; M. Ed. Leplae, Director-General of Agriculture, Belgium,
for several photos, the blocks of which were kindly supplied by Mr. H.
Hamel Smith, of _Tropical Life_; Messrs. Macmillan and Co. for five
reproductions from C.J.J. van Hall's book on _Cocoa_; and _West Africa_
for four illustrations of the Gold Coast.

The photographs reproduced on pages 2, 23, 39, 47, 49 and 71 are by
Jacobson of Trinidad, on pages 85 and 86 by Underwood & Underwood of
London, and on page 41 by Mrs. Stanhope Lovell of Trinidad.

The industry with which this book deals is changing slowly from an art
to a science. It is in a transition period (it is one of the humours of
any live industry that it is always in a transition period). There are
many indications of scientific progress in cacao cultivation; and now
that, in addition to the experimental and research departments attached
to the principal firms, a Research Association has been formed for the
cocoa and chocolate industry, the increased amount of diffused
scientific knowledge of cocoa and chocolate manufacture should give rise
to interesting developments.

A.W. KNAPP.

Birmingham, _February, 1920._

CONTENTS

PAGE
PREFACE v

INTRODUCTION 1

CHAPTER I
COCOA AND CHOCOLATE--A SKETCH OF THEIR HISTORY 5

CHAPTER II
CACAO AND ITS CULTIVATION 17

CHAPTER III
HARVESTING AND PREPARATION FOR THE MARKET 45
With a dialogue on "The Kind of Cacao the Man