CHEMICAL MANURES. 55 



We must endeavor to ascertain the truth between these two extreme 

 opinions. 



I hope to succeed in doing so, building upon documents from 

 agriculturists of the greatest merit, who worked under very different 

 conditions. 



It is by such accounts, and detailed accounts, that this question 

 must be settled. 



I owe the one which I first lay before you to the Hon. M. Schat- 

 tenmann, who last year received the first honor in the department of 

 the Lower Ehine, and a large prize at the "World's Fair, and who, 

 consequently, is a good judge in matters of culture. I add that M. 

 Schattenmann is moreover a practical man of the first order, and 

 entirely competent to decide a question of this kind, no matter how 

 complicated. 



Well, according to the account he has furnished me, the production 

 of 551 tons of manure and 500 tons of liquid manure costs not less 

 than $2869.15, which brings the price of manure to $4.94 the ton if 

 by approximation we fix that of liquid manure at 40 cents. 



Thus, according to M. Schattenmann, the manure on a model farm 

 cost in 1866, $4.94 the ton. 



You will notice that this price, which we think very high, rests 

 upon exceptional causes, and surpasses the ordinary cost in the cul- 

 ture. 



Let us take it, however, as a point of departure : 



Cost of Manure at the Farm of Thiergarten (Loivcr Rhine}. 



148,142 Ibs. of straw for litter.... $865.43 



984 Ibs. of liquid phosphoric acid 31.04 



Binding and transporting straw for litter 19.02 



4750 Ibs. of liquid manure 25.72 



Clearing out the sinks 1.90 



Wetting of manure 10.21 



Loading and transporting manure 187.13 



Filling the casks of liquid manure 1 3.99 



Loss on beef. 655.04 



Loss on cows 897.22 



Loss on pork 162.45 



Total $2869.15 



500 tons liquid manure, at 40 cts. the ton 200. 00 



551 " of manure, at $4.91 the ton 2738.47 



$2928.47 



The second example is furnished by M. Cavallier, who worked the 

 farm Mesnil-Saint-Nicaise (Somme). Here the conditions are dif- 

 ferent. 



With M. Schattenmann we had to do with a production of manure 

 joined in all its details to a grand culture of which it formed a part, 

 and Vhere the price of manure was influenced by that of the beeves, 

 cows, hogs, etc. The paper now before us relates to a simple case, 

 the fattening of 800 sheep. Here are the details : 



