LIST OF ILLUSTRATIONS 



FIG. 



1. Part of an Oat Plant, showing the Absence of Clasps . . 2 



2. A Panicle of Oats '. . 3 



3. Oak Spikelet in Bloom. (L. H. Bailey) .... 4 



4. Spikelets of Bed Rust-proof Oats 7 



5. A Panicle of Eed Eust-proof Oats 8 



6. Burt Oats 10 



7. Spikelets of Burt Oats 11 



8. Oats destroyed by Smut 23 



9. Ctieen-ling {Toxoptera gramiiium). (S. J. Hunter) . . 25 



10. Two Stages of a Lady-bug which destroys Greeti-bugs. 



(S. J. Hunter) 25 



11. Oats and Wheat grown with Crimson Clover. (Alabama 



Experiment Station) 27 



12. Part of a Young Wheat Plant 34 



13. Floret of Wheat. (L. H. Bailey) 35 



14. A Head, Spikelet, and Grain of Bearded Wheat ... 36 



15. A Typical Head of Beardless Wheat 37 



16. A Good Sample of Wheat. (California Experiment Station) Si 



17. Heads of Wheat 41 



18. Heads of Wheat 45 



19. Shocks of Wheat from Equal Areas. (Alabama Experiment 



Station) 4{ 



20. Double-disk Grain Drill 54 



21. Loose Smut of Wheat 65 



22. The Angoumois Grain-moth. (W. E. Hinds) ... 6; 



23. Heads of Southern Rye 65 



24. Part of a Young Rye Plant, showing the Small Clasps of the 



Leaves '^( 



25. A Mixture of Rye and Crimson Clover 7i 



26. Ergot in a Head of Rye. (L. H. Bailey) . . . .7; 



xix 



