CONTENTS

PAGE
GENERAL PREFACE[v]
AUTHOR'S PREFACE[ix]
CONTENTS[xi]
INTRODUCTION[1]

PART I.
HIDES FOR HEAVY LEATHERS.
Section
1. THE RAW MATERIAL OF HEAVY LEATHERS.[7]
2. THE PREPARATION OF PELT.[16]
3. VEGETABLE TANNAGE.[27]
4. FINISHING PROCESS.[49]
5. SOLE LEATHER.[55]
6. BELTING LEATHER.[65]
7. HARNESS LEATHER.[71]
8. UPPER LEATHERS.[76]
9. BAG LEATHER.[86]
10. PICKING BAND BUTTS.[90]

PART II.
SKINS FOR LIGHT LEATHERS.
1. PRINCIPLES AND GENERAL METHODS OF LIGHT LEATHER MANUFACTURE.[92]
2. GOATSKINS.[99]
3. SEALSKINS.[106]
4. SHEEPSKINS.[110]
5. CALFSKINS.[120]
6. JAPANNED AND ENAMELLED LEATHERS.[123]

PART III.
CHROME LEATHERS.
1. THE NATURE OF CHROME LEATHERS.[127]
2. GENERAL METHODS OF CHROME LEATHER MANUFACTURE.[139]
3. CHROME CALF.[156]
4. CHROME GOAT AND SHEEP.[163]
5. HEAVY CHROME LEATHERS.[170]

PART IV.
MISCELLANEOUS TANNAGES.
1. ALUM TANNAGES.[127]
2. FAT TANNAGES.[178]
3. OIL TANNAGES.[181]
4. FORMALDEHYDE TANNAGE.[185]
5. SYNTHETIC TANNING MATERIALS.[187]
6. COMBINATION TANNAGES.[191]
7. THE EVOLUTION OF THE LEATHER INDUSTRY.[194]

PART V.
GELATINE AND GLUE.
1. PROPERTIES OF GELATINE AND GLUE.[200]
2. RAW MATERIALS AND PRELIMINARY TREATMENT.[220]
3. EXTRACTION.[230]
4. CLARIFICATION AND DECOLORIZATION.[234]
5. BLEACHING.[241]
6. EVAPORATION.[248]
7. COOLING AND DRYING.[255]
8. USES OF GELATINE AND GLUE.[260]
9. THE EVOLUTION OF THE GELATINE AND GLUE INDUSTRY.[265]

PART VI.
MISCELLANEOUS PROTEINS AND BYE-PRODUCTS.
1. BYE-PRODUCTS OF THE LEATHER TRADES.[268]
2. BYE-PRODUCTS OF THE GELATINE AND GLUE TRADES.[272]
3. FOOD PROTEINS.[274]
4. MISCELLANEOUS ANIMAL PROTEINS.[279]
INDEX.[283]