The above mentioned kinds of rice were cultivated in the 

 neighbourhood of the mills, on grounds belonging to Michiels 

 Arnold. 



The gaba grain of Idjoean rice — thus called on account 

 of the special green tint shown by the sawahs (rice-fields) 

 where this kind is grown — is somewhat more pointed and 

 elongated, or at any rate somewhat less "plump" in form than 

 the Boeloe grain, which owes its name to the more than 

 usually conspicuous length of the awn of the husk. The differ- 

 ance in shape is accompanied by a slight deviation in weight: 

 the grain of Idjoean rice weighs on an average 30 mgr., 

 while the Boeloe grain is as a rule 1 mgr. heavier. 



The somewhat darker straw-colour of the Boeloe rice was 

 a consequence of its having been longer garnered, which 

 also caused the light yellow tint of the polished Boeloe 

 grain, which was especially noticeable when compared with 

 the polished Idjoean rice. 



This change of tint is the reason that a limit from 9 

 months to a year has been fixed for the ideal storage of 

 rice in its own husk : in the form of padi or gaba, and that 

 it is desirable not to exceed this limit. That the subperi- 

 carpal layer (silver-skin or silver-layer) became more brittle 

 during a longer time of storage was at any rate not to be 

 perceived during the further mechanical treatment of the 

 Boeloe rice. 



The kinds of rice here described were now, according to 

 the most used methods, subjected to three different kinds 

 of treatment. First of all they were converted into unpolished 

 rice (undermilled, husked rice or bras pitjah koelit), after- 

 wards into white rice (polished, overmilled, uncurred rice, 

 bras sosoh or bras huller) and finally into quite-polished 

 white rice (finished, pearled rice, bras sikat or bras slyf). In the 

 interest of the investigation the white rice (bras poetih) 

 which was lying ready for the army was only once more 

 polished, and each time the original quantity, also the 

 refuse and the polishings, were weighed. 



