LIST OF ILLUSTRATIONS 



FIG. PAGE 



1. Kjeldahl Digestion Flask . . . . .11 



2. Kjeldahl Distillation Apparatus without Condenser . 12 



3. Kjeldahl Distillation Apparatus with Condenser . 13 



4. Soxhlet Extraction Apparatus . . . .21 



5. Apparatus for Extraction with Volatile Solvents . 21 



6. Battery of Extraction Apparatus . . photo, facing 22 



7. Diagrammatic Representation of Polarimeter . . 31 



8. Polarimeter Observation Tube . . . .32 



9. Photomicrographs of Starch Granules . photo, facing 34 



10. Apparatus for Distillation with Steam . . .40 



11. Schrotter's Apparatus for estimating Carbonates . 58 



12. Simplified Schrotter Apparatus . . . .59 



13. Apparatus for measuring Percolation through Soil . 77 



14. Apparatus for measuring Capillarity in Soils . . 80 



15. Mayer's Modification of Schone's Elutriator . . 89 



16. Estimation of Carbonates in Soil by Absorption. . 94 



17. Amos's Apparatus for Estimation of Carbonates 



photo, facing 96 



18. Lunge Nitrometer . . . . . .111 



19. Schlossing's Apparatus for Estimation of Nitrates . 113 



20. Apparatus for Drying Substances in Inert Gas . . 149 



xxiii 



