40 CHEMICAL MANURES. 



The harvest obtained by M. Pousard is truly so astonishing one 

 dare hardly believe the facts. We therefore take great interest in 

 affirming them by analogous facts, which make them lose the cha- 

 racter of exceptions which we are tempted to attribute to them. 

 With this view I will report the two following results. 



On an acre of sand-land of very inferior quality Mr. Leon Pay en 

 obtained this year with the chemical fertilizer : * 



1. 40.44 bushels, at $1.57, actual price $63.84 



2. 5400 pounds straw 20.52 



3. Waste straw .34 



Total $84.70 



35,523.20 pounds of manure only produced from the same earth 



1. 11.55 bushels grain, at $1.57 $18.2 



2. Straw, 1511 pounds 3.72 



3. Waste straw .34 



Total , $24.30 



As to tile same soil without a fertilizer, it only furnished 3.69 

 bushels. 



Is it necessary to support the testimony of M. Payen ? The Hon. 

 M. cle Matharel, Inspector General of Finances, has given me the 

 means to do it. On the 26th of July he wrote me that upon land 

 w r hich had only produced a coarse bread corn he had this year ob- 

 tained 36 bushels of wheat. 



Let us contrast these four results : 



Culture of Wheat Return per acre. 



M. Pousard M. Bravay M. Payen M. de Matharel 



(Champagne). (Drome). (Aisne). (Puy de D6me). 



bu.~ Im. bu. bu. 



Chemical fertilizer 47 43 39 36 



Manure 18 15 11 36 



Without fertilizer 18 4 3.69 36 



Here are four results obtained from four different parts of France, 

 always on poor land, whose returns so resemble each other that they 

 are puzzling. 



The results obtained from the Irish potato are not the less signifi- 

 cant. 



With M. le Marquis de Harrincourt the complete fertilizer pro- 

 duced 14,222 pounds of tubers the acre. 



From 29,333 pounds of manure only 7111 pounds Were obtained. 



I have myself exceeded at Vincennes returns of from 22,222 

 pounds to 26,666 pounds. 



With M. Lavaux, at the farm of Choisy-le-Temple, on a piece of 

 8.44 acres, were obtained 



1st year, wheat _ 57 bu. the acre. 



2d year, colza 47 " 



3d year, wheat 39 " 



The third year the wheat fell down. 



