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Figure 1. Apparatus for crushing mineral fertilizers 5
“ 2. Plate grinder for minerals 6
“ 3. Shaking apparatus for superphosphates 60
“ 4. Shaking machine for ammonium magnesium phosphate 64
“ 5. Rössler ignition furnace 65
“ 6. Wagner’s digestion apparatus for slags 79
“ 7. Jones’ reduction tube 115
“ 8. Huston’s digesting apparatus 142
“ 9. Huston’s mechanical stirrer 145
“ 10. Mercury pump and azotometer 174
“ 11. Moist combustion apparatus of the Halle
agricultural laboratory 201
“ 12. Distillation apparatus of Halle agricultural
laboratory 203
“ 13. Distilling apparatus 208
“ 14. Schlöesing-Wagner apparatus 229
“ 15. Halle nitric acid apparatus 234
“ 16. Gantter’s nitrogen apparatus 237
“ 17. Geological relations of the potash deposits
near Stassfurt 258