5S IMPROVEMENTS IN THE CULTURE OF VEGETABLES, 



Dear Sir, 



Of^m** th it IT is with great pleasure and satisfaction, that I learnt 

 S^lSfy in- I csterda y f,ora Mr - Arthur Young, the Secretary of the 

 the Board of Agriculture, that he has adopted my idea of the 

 great importance of evaporation, and that he has actually 

 ordered Mr. Blunt, optician of Cornhill, to construct him 

 an instrument for ascertaining the evaporation, which in- 

 strument I shall request Mr, Blunt to show to the Society. 

 Mr. Young intends in the course of the summer to make a 

 variety of experiments on .the quantity of evaporation pro- 

 duced from different soils, agreeing with me, that the greater 

 or less degree of it influences most materially the luxuriance 

 or growth of the crop. 



In all the valuable tracts which Mr. Young has given tp, 

 the world, he has never adverted to this, and the first 

 knowledge of it as a principle for promoting the growth of 

 / crops was obtained from my account of the Schoose Farm, 

 in the report of the Workington Agricultural Society, of 

 which he is a member. 

 Afwwf KKing Being unable to account for the surprising weight of my 

 atnacure. g rsfe crQ p f cubages, with only one third of the manure 

 usually given, I was led to make the experiments I have 

 laid before the Society; and I believe I am not only the 

 first person in Lancashire, but even in Great Britain, who 

 ever thought of ploughing the ground upon the principle 

 I have executed, for promoting the growth of the crops. 

 ^rt^fa'T 6 * flatty myself, that my experiments on the economical 

 might be in- application of manure will lead in a high degree to facili- 

 elcxed. tate a lnore extended "cultivation, and obviate the ob- 



jections, which have been started by some persons against 

 the enclosure of waste lands, from their supposition, that 

 manure could not be furnished for more than the land at 

 present cultivated. 



I remain, dear Sir, 



Your obedient servant, 



J. C. CURWEN. 



Certificate*. 



