By Edward Solly, Esq. 



63 



In order to carry out more fully the objects contemplated in the 

 experiments on Savoys and Potatoes already described, a series of 

 experiments were made the succeeding year, on a much larger 

 scale, but with a more limited number of manures. Four plants 

 were selected for the purpose, namely Wheat, Potatoes, Peas and 

 Mangel Wurzel. These experiments are now so far concluded, that 

 the practical effects produced by the different manures, are known; 

 the variations in the chemical composition of the crops, obtained by 

 the manures, is at present being investigated. All the experiments 

 made at the gardens, were under the care of Mr. Robert Thompson. 

 The following is a description of the mode in which the experi- 

 ments were conducted, the manures employed, and the produce 

 obtained ; the chemical enquiries which these experiments give 



