U. S. Dept. of Agr , Bui, 126, Office of Expt. Stations. 



Plate I. 



FiG. 1.— Flour Particles from Straight Patent Flour No. 240 (Magnified 15 



DIAMETERS). 



Fig. 2.-FL0UR Particles from Entire-wheat Flour No. 241 (Magnified 15 



Diameters). 



