MANURES. 



129 



larger. I concludo that carrots exhaust land much less than 

 most other crops, hence the superior condition of hind after 

 carrots for succeeding crops the next year. 



Marblehead, November 14, 1862. 



Statement of Richard S. Rogers. 



Having completed my third and last series of experiments 

 on " top-dressing of grass lands," I now propose to give the 

 results of the present year ; premising that all the stakes and 

 bounds remain as originally marked out ; that no additional 

 top-dressing of any kind has been added to the lots ; each lot 

 being 250 by 45 feet, as mentioned in each former report ; and 

 in mowing and weighing the hay the most careful attention was 

 given. 



The result of the first and second crops, which were cut in 

 July and September of the present year, was as follows : — 



4,050 lbs. 1,235 lbs. 5,285 lbs. 



I now take the aggregate of tlie three consecutive years, and 

 show the production of each fertilized lot as named, adding 

 the whole of the same together, in order to show the crop of 

 hay from each, and which has so far proved best and most 

 reliable : — 



17 



