EXPERIMENTAL AGRICULTURE 



THE RESULTS OF PAST, AND 

 SUGGESTIONS FOR FUTURE EXPERIMENTS 



SCIENTIFIC AND PRACTICAL AGRICULTURE 



BY 



JAMES F. W. JOHNSTON 



\ i 



F.B.SS.L. & E., &c. &c. 



" No man ought to be discouraged if the experiments he puts in practice answer not his expecta- 

 tions; for what succeeds pleases more, but what succeeds not, many times informs no less.' 1 BACON. 



1LLIAM BLACKWOOD AND SONS 

 EDINBURGH AND LONDON 

 MDCCCXLIX 



