69 



COMPARISON IN VARIETIES OF WHEAT, 1917. 



Great Harpenden Field. 



METHODS of SOWING WHEAT after POTATOES. 



PLOUGHED UP GRASSLAND. 



New Zealand Field, 1916. 



Tliis tield had been pasture land for 8 years and was ploughed up in autumn of 1915. 

 No manure was given. 



* Crop attacked by birds. 



