4 PREFACE. 



will be spared to make it what it is designed to be a complete and substantial 

 summary of agricultural progress. 



To the many friends who have aided us in the preparation of the present 

 volume we would return our sincere thanks j our acknowledgments, however, are 

 especially due, for favors rendered, to the Editors of the Scientific American and 

 Philadelphia Horticulturist ; to Mr. Nicol, Superintendent of the Model Farm of 

 the Union Agricultural Society of Virginia and North Carolina; to Prof. B. L. C. 

 Wailes, Geologist of Mississippi ; G. E. Waring, Esq., of New York ; and C. L. 

 Flint, Esq., Secretary of the Massachusetts State Board of Agriculture. 



In the publication of the Year-Book of Agriculture one important fact is clearly 

 and unmistakeably demonstrated namely, that there is a constant progress and im- 

 provement in every department of theoretical and applied agriculture ; that many 

 strong hands and practical and comprehensive minds are enlisted in the work of 

 experiment and investigation, giving us the right to expect from the future many 

 great and valuable results. 



PHILADELPHIA, October, 1855. 



COMMUNICATIONS for the Editor should be addressed " Year-Book of Agricul- 

 ture ;" Care of Childs & Peterson, or David A. Wells & Co., 124 Arch Street, 

 Philadelphia. 



We would also take this opportunity to say, that while under no circumstances 

 will the pages of the Year-Book of Agriculture be open to the publication of articles 

 having any thing of the character of advertisements, the editor will be always 

 ready to give place to a description of every new and useful improvement pertain- 

 ing to agriculture, and also for engravings, if necessary. 



