LIST OF ILLUSTEATIOXS 



fl'J. PAGB 



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



2. A Panicle of Oats .3 



3. OakSpikelet in Bloom. (L. H. Bailey) .... 4 



4. Spikelets of Bed Rnst-proof Oats 7 



5. A Panicle of Red Rust-proof Oats ..... 8 



6. Burt Oats 10 



7. Spikelets of Burt Oats 11 



8. Oats destroyed by Smut . . ... . . 2.3 



9. Green-bug {Toxoptera graminnm). (S. .J. Hunter) . . 25 



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



(S. J. Hunter) 25 



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



Experiment Station) ........ 27 



12. Part of a Young AVheat 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; 38 



17. Heads of "\"rheat 41 



18. Heads of Wheat 42 



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



Station) 49 



20. Double-disk Grain Drill 54 



21. Loose Smut of Wheat . 62 



22. The Angoumois Grain-moth. (W. E. Hinds) . . . 63 



23. Heads of Southern Rye 69 



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



Leaves ~0 



25. A Mixture of Rye and Crimson Clover 72 



26. Er§Dt in a Head of Rye. (L. H. Bailey) . . . .73 



xix 



