AGRICULTURAL EXPERIMENT STATION. 



283 



Excrements from 



Timothy early-cut, 

 Timothy late-cut, 

 Oat Grass, 

 Eed Top, 

 Blue Joint, 

 Witch Grass, 

 Alsike Clover, 

 South Corn Fodder, 

 Field Corn Fodder, 

 Sweet Corn Fodder, 

 South Corn Ensilage, 

 Field Corn Ensilage, 

 Sweet Corn Ensilage, 



Sheep 1 . . 

 Sheep 2.. 

 Sheep 1.. 

 Sheep 2. 

 Sheep 3 . 

 Sheep 4- 

 Sheep 1 . 

 Sheep 2. 

 Sheep 3 . 

 Sheep 4. 

 Sheep 1 . 

 Sheep 2. 

 Sheep 3. 

 Sheep 4. 

 Sheep 1 . 

 Sheep 2 . 

 Sheep 3. 

 Sheep 4. 

 Sheep 3 . 

 Sheep 4. 

 Sheep 1 . 

 Sheep 2. 

 Sheep 3 . 

 Sheep 4. 

 Sheep 1. 

 Sheep 2. 



In water-free substance. 





itrogen after 

 ^traction by 

 Method B. 



Nitrogen ex- 

 tracted by 

 Method B. 





^ o 













1.54 



1.03 



.51 



1.62 



1.12 



50 



1.55 



1.21 



.34 



1.3S 



1.07 



.31 



1.81 



1.39 



.42 



1.54 



1.09 



.45 



1.41 



1.09 



.32 



1.49 



1.13 



36 1 



1.53 



1.09 



.44 i 



1.55 



1.09 



.46 



1.69 



1.12 



.57 



1.44 



1.01 



.43 



1.S3 



1.40 



.43 



1.89 



1.39 



.50 



2.48 



1.86 



.62 



2.18 



1.64 



.54 



2.53 



1.84 



.69 



2.60 



1.81 



.79 



2.41 



1.69 



.72 



1 87 



1.53 



.34 



2.33 



1.78 



.55 



2.40 



1.74 



.66 



3.23 



2.52 



.71 



2.50 



1.88 



.62 



2.69 



2.10 



.59 



2 82 



2.05 



.77 



-"O 



lea 



O >i 



la^'S 



33.1 



30.8 



21.6 

 22.4 

 23.2 

 29.2 

 22.5 

 24.2 

 28-7 

 29.7 

 33.7 

 29.8 

 23.5 

 26.4 

 25.0 

 24.7 

 27.6 

 30.4 

 29.9 

 18.2 

 23.6 

 27.5 

 21.9 

 24.9 

 21.9 

 27.3 



It appears from tbe above that from eighteen to thirty-three per 

 cent, of the nitrogen of the faeces was extracted. 



In the report for 1888, the question is raised whether solvents 

 used in method B extracted any compounds that properly belong 

 to the undigested residue of the food, such as peptones, amides, 

 or even albuminoids. It has previously been shown that tbe cold 

 lime water has no appreciable effect on the albuminoids. (See 

 Rep. Me. Exp't Station, 1888, pp. 202-3.) 



The hot water is the only other solvent which is likely to remove 

 albuminoids, and the presence of these compounds in this solution 

 has been tested by adding to it copper hydrate before filtering, in 

 the same manner as in Stutzers method for the separation of 

 albuminoid and amide nitrogen. The amount of nitrogen 

 extracted with and without the use of copper hydrate in the water 

 solution was compared in the cases of the excrements of six sheep, 



