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| Fig. 1. | Branch of cacao tree with blossom and leaves | 2 |
| Fig. 2. | Fruit and single seeds in long and cross section | 3 |
| Fig. 3. | Cross section of the cacao shell (enlarged) | 14 |
| Fig. 4. | Cross section of edge of seed leaf (enlarged) | 15 |
| Fig. 5. | Graph showing consumption of raw cacao | 40/41 |
| Fig. 6. | Graph per head of population in Germany | 42 |
| Fig. 7. | Grains and starch in cacao bean (section of ariba, enlarged 750 times) | 70 |
| Fig. 8. | Plan of cacao shell (enlarged) | 80 |
| Fig. 9. | Spongy paranchyma (enlarged) | 80 |
| Fig. 10. | Dry cells or skereides (enlarged) | 80 |
| Fig. 11. | Silver membrane with Mitscherlich particles (enlarged) | 81 |
| Fig. 12. | Preliminary cleansing machine (J. M. Lehmann) | 90 |
| Fig. 13. | Preliminary cleansing machine (J. M. Lehmann) | 91 |
| Fig. 13a. | Brushing machine for cacao beans (Bauermeister) | 92 |
| Fig. 14. | Cylindrical roasting machine (Lehmann) | 93 |
| Fig. 14. | and b. Same in section | 94/95 |
| Fig. 15. | a and b. Spherical safety roasters (Bauermeister) | 96/97 |
| Fig. 16. | Roaster with gas heating (Lehmann) | 98 |
| Fig. 17. | Cooling carriage with exhauster (Lehmann) | 99 |
| Fig. 18. | Crusher and cleanser (Lehmann) | 101 |
| Fig. 19. | Dust cleanser (Lehmann) | 103 |
| Fig. 20. | Electro-magnetic selecting machine (Lehmann) | 104 |
| Fig. 21. | Seed picking machine (Lehmann) | 105 |
| Fig. 22. | Seed picking (sectional drawing) | 106 |
| Fig. 23. | Simple cacao mill (Lehmann) | 110 |
| Fig. 24a. | Triple cacao mill (Lehmann) | 111 |
| Fig. 24b. | Triple cacao mill (Bauermeister) | 112 |
| Fig. 24c. | Triple cacao mill (Franke) | 113 |
| Fig. 25. | Fourfold cacao mill (Lehmann) | 115 |
| Fig. 26. | Cacao mill and roller apparatus combined (Bauermeister) | 116 |
| Fig. 27. | Warming through (Lehmann) | 117 |
| Fig. 28. | Preliminary mixing machine (Lehmann) | 118 |
| Fig. 29. | First melangeur (Hermann) | 119 |
| Fig. 30. | Design of modern melangeur (Franke) | 121 |
| Fig. 31. | Modern melangeur with outlet at side (Lehmann) | 122 |
| Fig. 32. | Larger melangeur with cover and outlet (Lehmann) | 124 |
| Fig. 33a. | Design of first roller machine, front elevation (Savy) | 125 |
| Fig 33b. | do. Plan | 125 |
| Fig. 34. | Later machine (Savy) | 126 |
| Fig. 35. | Modern six roller machine by Lehmann | 127 |
| Fig. 36. | Nine roller apparatus (Bauermeister) | 128 |
| Fig. 37. | Same in design | 129 |
| Fig. 38. | Three roller machine with cast iron rollers (Lehmann) | 130 |
| Fig. 39. | 2 three roller machines, attached to a “Battery” | 130 |
| Fig. 40. | Three roller machine with cast iron rollers (Franke) | 131 |
| Fig. 41. | and b. Four and five roller machines with cast iron rollers (Lehmann) | 132/3 |
| Fig. 41c. | Five roller machine with cast iron rollers (Bauermeister) | 134 |
| Fig. 42. | Three roller machine with electric motor (Lehmann) | 135 |
| Fig. 43. | Front elevation of triturating machine (Conche) by Franke | 138 |
| Fig. 43a. | Conche (Lehmann) | 139 |
| Fig. 44. | Conche room (Lehmann) | 140 |
| Fig. 45. | Warming closet with steam heating (Lehmann) | 142 |
| Fig. 46. | Small melangeur with one runner (Lehmann) | 143 |
| Fig. 47. | Do. modern construction (Lehmann) | 144 |
| Fig. 48. | Modern tempering machine (Lehmann) | 145 |
| Fig. 49. | Design of air exhausting machine (Lehmann) | 147 |
| Fig. 50. | Air exhausting machine (Lehmann) | 147 |
| Fig. 51. | and b. Chocolate dividing machines (Lehmann and Bauermeister) | 148/9 |
| Fig. 52. | Moulding and layering machine (Lehmann) | 150 |
| Fig. 53. | Reiche’s mould cleansing and polishing machine | 155 |
| Fig. 54. | Design of shaking table | 156 |
| Fig. 55. | do, (Lehmann) | 157 |
| Fig. 56. | do, (Lehmann) | 157 |
| Fig. 57. | do, modern construction (Lehmann) | 158 |
| Fig. 57a. | do, Front elevation | 159 |
| Fig. 58, | 58 a. and b. Shaking table batteries (Lehmann) | 160/1 |
| Fig. 59. | a. and b. Cooling plant (Wegelin & Hübner) | 1655/6 |
| Fig. 60. | do, perspective | 167 |
| Fig. 61. | Modern air cooling apparatus (Escher, Wyss & Co.) | 169 |
| Fig. 62. | Cooling plant of Cole’s Arctic Patent Dry Cold Air Machine | 170 |
| Fig. 63. | a. and b. Cooling chambers by Lehmann | 173/4 |
| Fig. 63c. | Automatic moulding and cooling plant by Lehmann | 175 |
| Fig. 64/65. | Pastille machines (Reiche) | 177 |
| Fig. 66a-i. | Moulds to these machines | 178 |
| Fig. 67. | Pastille machines for thin chocolate material (Reiche) | 179 |
| Fig. 68. | Pastille and praliné metal hurdle (Reiche) | 180 |
| Fig. 69. | Mould metal Durabula Reiche | 181 |
| Fig. 70. | Fondant machine (Lehmann) | 183 |
| Fig. 71. | do, modern construction (Lehmann) | 184 |
| Fig. 72. | Fondant casting machine (Lehmann) | 185 |
| Fig. 73. | Fondant powdering off machine, for hurdles (Lehmann) | 186 |
| Fig. 74. | do, non-stop (Lehmann) | 187 |
| Fig. 75. | Coating machine (Lehmann) | 188 |
| Fig. 76. | Stirring apparatus for coating material (Lehmann) | 188 |
| Fig. 77/78. | Coating or dipping machines (Reiche) | 189 |
| Fig. 79/80. | Grating to these | 190/1 |
| Fig. 81. | Modern dipping machine constructed by Lehmann | 193 |
| Fig. 82. | Cacao press, 400 atmospheres (Lehmann) | 201 |
| Fig. 83a. | Cacao butter filter, design (Hänig & Co.) | 202 |
| Fig. 84. | Cacao press on larger scale (Lehmann) | 205 |
| Fig. 84a. | Pump for cacao press (Lehmann) | 206 |
| Fig. 84b. | Cacao cake crusher (Seek) | 207 |
| Fig. 85a. | do, (Bauermeister) | 208 |
| Fig. 85b. | do, (Lehmann) | 209 |
| Fig. 86. | Pulveriser (Lehmann) | 210 |
| Fig. 87. | Pulverising and sifting machine (Lehmann) | 211 |
| Fig. 88. | Centrifugal sifting machine, modern construction (Lehmann) | 213 |
| Fig. 89. | Automatic pulverising plant (Lehmann) | 215 |
| Fig. 90a. | Mixing machine (Lehmann) | 217 |
| Fig. 90b. | Universal kneading and mixing machine (Werner & Pfleiderer) | 218 |
| Fig. 91a. | Vacuum kneader, closed (Werner & Pfleiderer) | 219 |
| Fig. 91b. | Vacuum kneader, open and upturned (Werner & Pfleiderer) | 221 |
| Fig. 92. | Filling and packing machine | 229 |
| Fig. 93. | do, “Triumph” (Fritz Kilian) | 229 |
| Fig. 94. | Edge-runner mill | 231 |
| Fig. 95. | Drum sifting machine (Lehmann) | 232 |
| Fig. 96. | Combined sugar-grinding and sifting apparatus (Lehmann) | 233 |
| Fig. 97. | Spice and stamping apparatus (Lehmann) | 239 |
| Fig. 98. | Pulverising mill (Savy) | 240 |
| Fig. 99. | Sifting machine (Savy) | 241 |
| Fig. 100. | Parenchyma of the cotyledon, enlarged | 275 |
| Fig. 101. | Cocoa powder, enlarged | 276 |
| Fig. 102. | do, enlarged | 277 |
| Plate I. | The Cacao Tree | |
| Plate II: | Chocolate factory (design) | 305 |
| Plate III: | Cocoa powder factory (design) | 306 |