FOOD OF MAN- STUDIES. 



^OD 



the bran particles are very large and the flour fine, while the 

 amount of the intermediate product is small, amounting to but 

 6 per cent of whole. The home ground graham is much more 

 homogeneous, the bran rather fine, and the proportion of the 

 intermediate product large, forming 30 per cent of the whole, 

 the coarser particles passing into the finer by imperceptible 

 gradations. 



The two flours were evidently from very different grains and 

 the products show many points of dissimilarity. These char- 

 acters are most readily compared in the table below. 



Lab. No. 



Graham. 



Bran. 



Middle Product 



Fine Flour. 



5190 



Dingy 



Brown 



Brown 



A dirty 



Western 



Texture uneven 



Fragments large. 

 Diameter up to 



5-6 mm. 

 More adherent 



flour than with 



other bran. 





grayish color. 



5191 



Yellowish 



Yellowish 



Distinctly 



A uniformly 



Eastern 



More homogene- 



Fragments much 



yellowish, 



clear and 





ous than the 



smaller and 



much lighter 



slightlv 





former. 



apparently 

 thinner 

 Diameter up to 

 3-4 mm. 



than above. 



yellowish 

 product. 



ANALYSIS OF THE GRAHAM FLOURS AND THE MECHANICALLY 

 SEPARATED PRODUCTS. 



6 

 -a 



Kind of Flour. 







03 



c 

 <p 



M 



O 



8 x 



09 



g.-s 



a o3 



x 

 < 







% 



% 



% 



% 



% 



% 



% 



5190 





11.73 



2.47 



14.08 



3.04 



1.88 



67.25 



2.02 



5192 





10. S4 



2.41 



13.74 



4.87 



8.55 



56.66 



5.34 



5193 





9.84 



2.90 



16.53 



4.63 



5.26 



58.92 



4.82 



5194 



Flour 



11.24 

 13.21 



2.47 

 1.50 



14.08 



8.55 



2.98 

 1.89 



1.00 

 2.46 



69.07 

 72.21 



1.63 



5191 





1.68 



5195 





11.43 

 12.60 



1.92 



1.7S 



10.94 

 10.15 



2.13 

 2.55 



9.07 

 4.81 



61.16 

 66.61 



5.27 



5196 





3.28 



5197 



Flour 



13.30 



1.3S 



7.87 



1.55 



.62 



75.93 



.73 









