EXPERIMENT STATION BULLETINS. 319 



traction of part of the oil from unscreened flaxseed by crushing, cooking 

 and hydraulic pressure, or by crushing, heating and the use of solvents. 

 Wben sold without grinding the unground product shall be designated 

 as "unscreened flaxseed oil feed cake." 



Ingredients of Unscreened Flaxseed Oil Feed — Ground cake from par- 

 tially extracted flaxseed and foreign seeds (wheat, wild buckwheat pigeon 

 grass, wild mustard, etc) 



Screenings Oil Feed is the ground product obtained after extraction of 

 part of the oil by crushing, cooking and hydraulic pressure, or by crush- 

 ing, heating and the use of solvents from the smaller imperfect grains, 

 weed seeds and other foreign materials having feeding value separated 

 in cleaning the grain. The name of the grain from which the screenings 

 are separated shall be prefixed to "screenings oil feed." 



OAT PRODUCTS. 



Oat Groats are the kernals of the oat berry. 



Oat Hulls are the outer chaffy coverings of the oat grain. 



Oat Middlings are the floury portion of the oat groat obtained in the 

 milling the rolled oats. 



Oat Shorts are the covering of the oat grain lying immediately inside 

 the hull, being a fuzzy material carrying with it considerable portions 

 of the fine floury part of the groat obtained in the milling of rolled oats. 



Clijjped Oat By-Product is the resultant by-product obtained in the 

 manufacture of clipped oats. It may contain light, chaffy material 

 broken from the ends of the hulls, empty hulls, light, immature oats and 

 dust. It must not contain an excessive amount of oat hulls. 



PEANUT PRODUCTS. 



Peanut Oil CaJce is the residue after the extraction of part of the oil 

 hj pressure or solvents from peanut kernels. 



Peanut Oil Meal is the ground residue after the extraction of part of 

 the oil from peanut kernels. 



Unhulled Peanut Oil Feed is the ground residue obtained after extrac- 

 tion of part of the oil from whole peanuts, and the ingredients shall be 

 designated as "peanut meal and hulls." 



RICE PRODUCTS. 



Rice Bt-an is the cuticle beneath the hull. 

 Rice Hulls are the outer chaffy coverings of the rice grain. 

 Rice Polish is the finely powdered materials obtained in polishing the 

 kernel. 



WHEAT PRODUCTS. 



Wheat Bran is the course outer coatings of the wheat berry obtained 

 in the usual commercial milling process from wheat that has been cleaned 

 and scoured. 



Shorts or Standard Middlings are the fine particles of the outer and 

 inner bran separated from bran and white middlings. 



Wh^eat White Middlings or White Middlings are that part of the offal 

 (fltf whea.t intermediate between shorts or standard middlings and red dog. 



