ILLUSTRATIONS. 



Plate I. 



Fig. 1. Fowl-run, showing arrangement of cages. 



2. Fowl fed on white rice. Early stage of polyneuritis. 



Plate II. 



Fig. 3. Fowl fed on white rice. Polyneuritis. 



4. Fowl fed on white rice. Late stage of polyneuritis. 



Plate III. 



Fig. 5. Teased preparation of sciatic nerve of fowl suffering from polyneuritis. 

 Wallerian degeneration. 



6. Cross section of rice grain, after removal of the palere or husks, showing 



the pericarp and subpericarpal layers intact. 



7. Cross section of rice grain treated by parboiling before milling, showing 



the subpericarpal layers intact. 



8. Cross section of grain of white rice (Siamese). Subpericarpal layers have 



been removed in polishing. 



63 



