MICROSCOPICAL EXAMINATION OF FLOUR. 



13 



Tests similar to those made on break roll products were made 

 on middlings stock. Middlings are usually recognized as being the 

 medium granular particles of the endosperm resulting from the crack- 

 ing of the wheat kernel on the break rolls. After proper purification 

 or removal of the branny material, the middlings are milled, on the 

 reduction rolls, to the fineness of flour. The results of experimental 

 work done on middlings stocks are recorded in Table 11. 



Table 11. — Results of examination of middlings stocks. 



Type of wheat. 



Hard 



do 



do 



Hard and soft. 



do 



Soft 



do 



do 



do 



Hard 



do 



....do 



do 



Hard and soft. 



do 



Soft 



....do 



....do 



....do 



Hard 



....do 



....do 



Hard and soft. 



....do 



....do 



....do 



Soft 



....do 



....do 



....do 



....do 



Hard 



do 



Hard and soft. 



do 



....do 



do 



Soft 



....do 



do 



do 



do 



Hard 



do 



do 



do 



Hard and soft. 



do 



do 



do 



Soft 



do 



do 



Bolting cloth. 



FTBST MIDDLINGS STOCK. 



lOxx, llxx, 12xx. 



lOx 



lOxx 



(?) 



(?) 



(?) 



(?) 



lOxx 



lOxx 



SECOND MIDDLINGS STOCK. 



12xx, 13xx, 14xx . 



lOx 



llxx, 12xx 



llxx 



(?) 



(?) 



(?) 



(?) 



lOxx 



lOxx 



THIED MIDDLINGS STOCK. 



lOx, llx.... 



llx, 12XX.. 



lOxx, llxx. 



(?) , 



(?) 



(?) 



(?) 



(?) 



(?) 



lOxx 



14xxx 



lOxx 



FOURTH MIDDLINGS STOCK. 



llxx, 12xx, 14xx. 



llxx, 12xx 



(?) 



(?) 



(?) 



llxxx, 12xx 



(?) 



(?) 



12xx 



(?) 



(?) 



FDJTH MIDDLINGS STOCK. 



llxx, 12xx, 14xx. 



lOx, llx 



llxx, 12xx 



llxx, 12xx 



(?) 



(?) 



12xx 



(?) 



(?) 



12xx 



(?) 



Bran 

 particles. 



Hairs. 



22 



18 



14 



4 



36 



16 



23 



2 



18 



22 



19 



3 



59 



12 



21 



8 



5 



2 



5 



3 



7 



3 



29 



2 



100 



50 



11 



1 



7 



5 



25 



1 



59 



6 



48 



27 



8 



4 



8 



1 



27 



6 



14 



5 



6 



3 



69 



26 



19 



22 



18 



24 



9 







34 



5 



36 



7 



21 



5 



9 



4 



10 



6 



76 



25 



7 



1 



38 



23 



8 



10 



82 



9 



26 



1 



26 



5 



29 



2 



115 



24 



40 



6 



18 



13 



9 



1 



21 



5 



74 



22 



74 



36 



10 



9 



65 



19 



57 



57 



80 



18 



55 



12 



43 



10 



Total. 



10 

 31 

 150 

 12 

 12 

 26 

 65 

 75 

 12 



16 



101 



8 



61 



18 



91 



27 



31 



31 



139 



46 



31 

 10 



26 

 96 



110 

 19 

 84 



114 

 93 

 67 

 53 



