24 COMMERCIAL FEEDING STUFFS. 



LINSEED MEALS. 



The average, maximum, and minimum protein and fat content of 

 various samples of linseed meal examined in Pennsylvania, New 

 England, and New York are given in the following table : a 



TABLE 4. Percentage of protein and fat in linseed yieals. 

 [Compiled.] 



The average composition of linseed meals reported by Jenkins and 

 Winton 6 is as follows: 



TABLE 5. Average percentage composition of linseed meals. 

 [Compiled.] 



Taken as a whole the crude protein content of the samples of lin- 

 seed meal examined is satisfactory (Table 6). A considerable num- 

 ber of the samples do not come up to any of the above averages, but 

 they are, in the majority of cases, not sufficiently below the general 

 average to excite any suspicion of adulteration. The only samples 

 sold under the name of linseed meal that excite any suspicion at all 

 (because of their low protein content) are Nos. 1537, 1868, and 1791. 

 Sample No. 1537 not only contains a slightly low amount of protein, 

 but shows an amount of crude fiber several per cent higher than the 

 average and a larger amount of reducing sugars than other sam- 

 ples. The microscopical examination explains this matter by show- 

 ing the presence of a wheat product inixed with the linseed meal. 

 The composition of another sample of this product is satis- 

 factory, although a small amount of some leguminous plant is 

 shown to be present. Sample No. 1868 contains a slightly low 



o Report of Pennsylvania State College for 1900-1901, report of chemist, 

 b U. S. Dept. Agr., Office of Experiment Stations, Bui. No. 11, A Compilation of 

 Analyses of American Feeding Stuffs. 



