144 On Foreign Grain and Ploughs, 



would have taken with the common mode of ploughing, 

 for two ordinary ploughs, 12 days and an half, making 

 an actual saving of a half in men and horses, both as 

 to time and labour, and the work equally well done.* 



Experiments have proved, that where the fall of rain 

 is 20 inches per annum, as in the vicinity of Paris, the 

 component parts of the earth for wheat, should be on 

 50 parts, 25 parts silex, 15 parts calcarious, 10 parts 

 vegetable and animal matter, and argil. 



The earth of a field on the banks of the Seine, six 

 leagues from Paris, at Draveil, has been analysed, and 

 found to contain as follows : 



Silex, - - . 25. 3 



Calcarious matter, - - 14. 4 



Water, Vegetable and Animal Matter, 8. 75 



Oxide de fer, - - 0. 75 



Alumine, - - 0. 57 



Oxide de Manganese, - - 0. 01 



Sulfate de Potasse, - - 0. 01 



Loss, - ' 0. 21 



50. 



. * The motive for furnishing the draft of Mr. Parker's 

 plough, merits and obtains our thanks. The results, and his 

 course of crops, are highly exemplary. 



It will be seen that the plough which has obtained so 

 much approbation in France, has been worked against the 

 best English and French ploughs ; and is deemed superior 

 to them. This being the case, apparently, it cannot be ac- 

 counted an unfounded assertion, that the ploughs of this 

 country, esteemed and used here by good farmers, are equal 

 to those of Europe. They are superior in simplicity of con- 



