xvi LIST OF ILLUSTRATIONS 



i6. Formation of a Sedentary Soil . . . Face page 78 



17. Formation of a Drift Soil . . • » 84 



18. Experiment to show Percolation and Absorption 



of Water by Different Soils . . • » 92 



19. Photograph illustrating Liquid Film round Soil 



Particles ...,.„ 100 



20. Diagram illustrating Capillary Rise of Liquids „ 104 



21. Distribution of Sun's Rays upon Southerly and 



Northerly Slope .... Page 1 1 7 



22. Apparatus used for Experiments with Bacteria Face page 122 



23. Diagram showing the Energy required from the 



Food by Oxen of Different Weights . . „ 198 



24. Diagram showing the Composition of the Carcass 



of Lean, Half- Fat, and Fat Oxen . . „ 208 



