i8o 



APPENDIX. 



Table showing the Annual Yield of Wheat per acre 

 in the United Kingdom during each of the last 

 thirty years, and in three periods of ten years each, 

 reckoning 28 bushels as an average crop, and 

 representing that by the number 100. 



Produce per Acre. 



In 30 years.... 

 ^879 



3,000 



