]0 N. H. EXPERIMENT STATION [Bulletin 175 



''Prime cottonseed meal must be finely ground, of sweet 

 odor, reasonably bright in color, yellow, not brown or red- 

 dish, free from lint, and contain at least forty-six per cent 

 of combined protein and fat." 



"Good cottonseed meal must be finely ground, of sweet 

 odor, reasonably bright in color, and by analysis must con- 

 tain at least forty-three per cent of combined protein and 

 fat." 



LINSEED MEAL. 



Linseed meal, oil meal, or flaxseed meal is the ground 

 residue from the extraction of oil from flaxseed. The oil 

 is extracted by two processes, known as the old process and 

 the new process. In the old i)rocess the oil is simply ex- 

 pressed from the seed by hydraulic pressure. In the new 

 process naphtha or a similar solvent is used to extract the 

 oil. On account of the extraction being more complete 

 when a solvent is used, the new process generally contains 

 less fat than the old process, while they contain about the 

 same per cent protein. 



WHEAT PRODUCTS. 



Wheat hran is the coarse outer covering of the wheat 

 berry. It contains much of the fibrous material of the 

 grain, but is rich in protein. 



Middlings or shorts. These terms have generally the 

 same meaning in the trade, and are the fine particles of 

 the outer bran as well as considerable starchy nmtter. 

 They are the intermediate product between bran and flour. 



Red dog is a low-gradi' wheat flour containing the finer 

 particles of bran.* 



\Vh<(i( inixid f((d or shipstuff is a mixture of the by- 

 products from the milling of the wheat berry.* 



Mixed feed. The Xwrn mixed feed has been so generally 

 used to mean a mixture of wheat products that it is practi- 

 cally a misrepresentation to use the term to mean a mix- 

 ture of other cereals. A feed k^ss tliaii fifteen per cent 

 protein and four per cent fat cannot l)e a good mixed feed. 

 In some cases the wheat screenings are ground and re- 

 mixed with tlie bran or other by-products. The mixture 

 is then hibe'.ed as bran or mixed feed, etc., with mill 

 run screenings. 



