viii editor's preface. 



requires alteration, even after the lapse of seven years' ex- 

 periment. 



These observations are made in no spirit of boasting ; 

 they are merely intended to support the idea, which runs 

 through the whole of Dr. Stockhardt's excellent work, of 

 the benefit to be derived from science by being properly 

 applied to agriculture, and of the years of rich harvests 

 which have been lost from the want of faith in this idea. 



The information contained in this work respecting the 

 value of the cultivation of rape, of its products, and the 

 influence of its residuum as a food for cattle and a manure, 

 is particularly recommended to the attention of the agri- 

 culturists of this country. The seeds might easily be im- 

 ported from France or Holland, and experiments be made 

 under the direction of our State Agricultural Society, which 

 would no doubt offer a premium for the encouragement, at 

 all events, of the experiment. 



It is hoped that this work will add weight to the already 



numerous proofs of the facts in the preceding paragraphs, 



and that the public will not fail to encourage and support 



every attempt to bring agriculture and science into closer 



union and connection. 



J. E. T. 



