ILLUSTRATIONS 



FIG. PAGB 



1. Bacteria 4 



2. Structure of Fungi . . .11 



3. Nitre-Sick Beet Field, Showing Barren 



Spots ....... 25 



4. Effect of Lime . . . . . 27 



5. Pythium deBaryanum .... 43 



6. Rhizoctonia . . . . . -45 



7. FusARiuM Wilt 47 



8. Nematode Root Knot .... 49 



9. Inverted Pan for Steam Sterilization 55 



10. Surface Watering> Showing Portable 



Spray Equipment Used in Gardens about 



Cold Frames and Hotbeds . . 55 



11. Watermelon Slice Showing Hail Injury 74 



12. Lightning Injury m Potato Field. 



Drought Injury of Sweet Corn . 78 



13. Malnutrition, Showing a Cabbage Leaf 



Affected by the Disease ... 81 



14. Blossom Drop 83 



