Vm PREFACE. 



to offer liis cordial and grateful acknowledgments. He 

 hopes that the value of the extracts -wliich he has made 

 may induce many to have recourse to the original 

 sources for the information A^'liich, in this work they 

 can^ for the most part^ only have in a fragmentary 

 form; and that thus^ at leasts he may have helped to 

 advance the great cause of agricultural improvement; 

 a cause^ the promotion of which is daily becoming a 

 subject more momentous and vital. 



London, March 1847. 



