G MASSES OF lO VA. 



415 



lands. This is tbe buffalo gi-ass of the Saskatc'iewan region. 

 In some localities it'is kaown as needle grass or darning needle, 

 but that name is reserved for Aristld i fascicidata. It is also 

 known as 'vvild oats' in North Dakota. " 



CHEMICAL COMPOSITION. 



Pour analyses were made of Stipa sp%rtea in the laboratory 

 with the results as given below: 



Sample 1. Collected May 7, 1896, 17 to 18 inches high. 



Sample 2. Collected May 21, 1896, 24 to 30 inches high. 



Sample 3. Collecr.ed May 26, 1896, .30 to 3-3 inches high. 



Sampe 4. Collected June 8, 1896, 48 to 49 inches high. 



NATURAL CONDITION. 



Sample 1. 

 Sample 2. 

 i^ample 3. 

 Sample 4. 



11.65 



13.41 



13.84 



5.40 



WATKR FREE SUBSTANCE. 



Sample I. 

 Sample 2 

 Sample 3 

 Sample 4 



3.57 I 15.42 

 3.18 1 8.51 



1 19 I 9 00 



2 26 I 9.. 33 



40 28 

 41.15 

 43 07 

 49 24 



The water percentages are found to be irregular, and in 

 the water free substances it will be noticed that the fat is not 

 constant in the amount present in the grass. The protein 

 varies from 15.43 per cent to 8.51 per cent and the changes are 

 also irregular; the albuminoids are also found to change 

 from 9.91 to 5.34 per cent. The crude fiber increises in the 

 first three samples from 29.12 to 39 22, and in the fourth saT- 

 ple we find that it change ^> to 30.96 per cent, and the ash per 

 centages also change in the same order. The ritrogea free 

 extract increases regularly from 40.28 percent to 49.24 per 

 cent as the grass ma,')U''es. The following analysis is added 

 for comparison : 



