LIST OF ILLUSTRA'lIONS 



FULL-PAGE PLATLS 



Sir John Bkxnkt Lawks, Baut. 



Sir Joseph Henuv Gilueut 



Fig. 17.— Turf from Plot 3. Without Manure 



'I'o face 



18.- 



ly.- 



20.- 



26. 



Plot 5. Amnioniuni-salts alone 



Plot 17. Nitrate Soda alone . 



Plot 7. Full Minerals 



Plot 8. Minerals without Pota.sh 



Plot 4-1 . Superphosphate alone 



Plot 9. Full Minerals and Am 

 monium-salts = 86 lb. N. 



Plot 11. Full Minerals and Am - I 

 monium-salts = 147 lb. N. I 



Plot 14. Full Minerals and Nitrate, 

 of Soda . . .| 



Superphosphate and Am- I 

 monium-salts . . ' 



Full Minerals after .\m- i 

 monium . . ' 



Full .Minerals after Nitrite I 



page XXI 

 xxxij 



1.-.6 



58 



160 



hvi 



164 



170 



DIAGIIAMS I \ TM K T K .\ T 





Fig. 1. — Uainfall, Sunshine, and Mean 'I'emper.iture . 



l>._Broadbalk Wheat. Maintenanee of yield during' lO-year 



periods ...■■•••' 



„ 3. — IJroadbalk Wheat. EHeet of iiiereasinj,' amounts of Nitroj^en 

 on the production of \N heat ((irain and Straw) 



xvii I, 



i.i 



