THE MILLING OF RICE. 



19 



methods of the Association of Official Agricultural Chemists. For 

 better comparison, these results are also calculated to the moisture- 

 free basis. They show that the product from the " plantation huller " 

 is lower in percentage of ash, ether extract, and crude fiber than the 

 rice from the old mortar-and-pestle mills, indicating a more thorough 

 scouring of the grains in the huller. 



Table VI. 



-Chemical com position of samples of rice in various stages of milling 

 and of different qualities. 



Sample analyzed. 



Constituents (per cent). 



Mois- 

 ture. 



Ash. 



Ether 

 extract. 



Crude 



fiber. 



Pro- 

 tein. 



Calculated to moisture-free basis. 



Ash. 



Ether 

 extract. 



Crude 

 fiber. 



Pro- 

 tein. 



MORTAR-AND-PESTLE MILL. 



Louisiana lot (Honduras 

 type), 1889: 



Rough rice 



Other stages — 



From hulling stones 



Pounded 



From cooling floor. . 



Clean 



South Carolina lot, 1901 : 

 Rough rice (dried at 50° 



C.) 



Polished rice — 



Whole 



"Middling" 



Small..-. 



"PLANTATION HULLER." 



Rice of the Japan type: 



Good quality 



Fair quality 



Poor quality 



10.95 



12.12 



12.42 

 12.75 

 12.85 



12.79 

 13.69 

 13.92 



10.28 

 9.96 

 10.09 



5.45 



2.55 



2.38 



.82 



.73 



2.58 



2.10 



2.50 



1.05 



.38 



.24 

 .43 

 .73 



9.28 



3.03 



2.55 



.72 



.47 



.20 

 .25 

 .21 



7.44 



8.09 

 8.14 

 7.74 

 7.52 



7.19 



7.38 

 6.88 

 6.75 



7.75 

 6.38 

 7.00 



6.12 



2.90 



2.72 



.94 



.83 



.33 

 .36 

 .34 



.21 

 .26 

 .21 



10.42 



3.45 



2.91 



.83 

 .54 



8.51 



.38 

 .38 

 .45 



8.35 



9.21 

 9.29 



8.87 

 8.63 



7.59 



8.46 

 7.97 



8.64 

 7.09 

 7.79 



Chemical analyses were made of four series of mill samples of 

 Honduras rice and of three series of samples of Japan rice. These 

 samples, which represent different grades of rough stock, were ob- 

 tained in various parts of Louisiana, Texas, and Arkansas and are 

 considered to typify the chemical effect of rice milling as now exem- 

 plified in those States. Table VII gives the results of these chemical 

 analyses. 



