Control observation tube 95 ” 42. Apparatus for the volumetric estimation of reducing sugars 131 ” 43. Apparatus for the electrolytic deposition of copper 151 ” 44. Apparatus for filtering copper suboxid 154 ” 45. Apparatus for reducing copper suboxid 154 ” 46. Distilling apparatus for pentoses 179 ” 47. Autoclave for starch analysis 199 ” 47. (Bis). Maercker’s hydrolyzing apparatus for starch 204 ” 48. Maranta starch × 350 } ” 49. Potato starch × 350 } ” 50. Ginger starch × 350 } ” 51. Sago starch × 350 } ” 52. Pea starch × 350 } ” 53. Bean starch × 350 } ” 54. Wheat starch × 350 } ” 55. Barley starch × 350 } to face 220 ” 56. Rye starch × 350 } ” 57. Oat starch × 350 } ” 58. Indian corn starch × 350 } ” 59. Rice starch × 350 } ” 60. Cassava starch × 150 } ” 61. Indian corn starch × 150 } ” 62. Laboratory cane mill 230 ” 63. Weighing pipette 231 ” 64. Gird’s gravimeter 233 ” 65. Machine for cutting canes 236 ” 66. Cane cutting mill 237 ” 67. Apparatus for pulping beets 243 ” 68. Apparatus for cold diffusion 245 ” 69. Sickel-Soxhlet extractor 247 ” 70. Scheibler’s extraction tube 248 ” 71. Battery for alcoholic digestion 250 ” 72. Rasp for sampling mother beets 251 ” 73. Hand press for beet analysis 251 ” 74. Perforating rasp 252 ” 75. Tube for continuous observation 253 ” 75. (Bis). Chandler and Rickett’s Polariscope 266 ” 76. Apparatus for polarimetric observations at low temperatures 267 ” 77. Construction of desiccating tube 268 ” 78. Apparatus for polarizing at high temperatures 269 ” 79. Oil press 312 ” 80. Apparatus for fractional distillation of petroleum ether 314 ” 81. Section showing construction of a funnel for hot filtration 316 ” 82. Balance and Westphal sinker 318 ” 83. Melting point tubes 322 ” 84.