ILLUSTRATIONS 



Page. 



Fig. 1. Wheat plants from six plats treated differently, showing comparative 



development 1 - 



2. Wheat growing on plat which has been continuously seeded to the 



same crop ' ; » 



3. Wheat growing on plat on which Canadian field peas were grown and 



plowed under in 1908 14 



4. Wheat growing on plat on which rye and vetch were grown and plowed 



under in 1908 l- r > 



5. Wheat growing on plat on which rye was grown and plowed under 



in 1908 l (i 



G. Representative plants of six varieties of wheat from uniform plats 

 planted November 21, 1908, at Modesto, Cal., showing their com- 

 parative development on May 1, 1909 21 



7. Representative plants of six additional varieties of wheat from uniform 



plats planted November 21, 1908, at Modesto, Cal., showing their 

 comparative development on May 1, 1909 22 



8. Chul wheat (G. I. No. 2227) growing at Modesto, Cal., in 1909 24 



9. Fretes wheat (G. I. No. 1596) growing at Modesto, Cal., in 1909 27 



10. White Australian wheat (G. 1. No. 3019) growing at Modesto, Cal., 



in 1909 - :s 



178 

 6 



