CIRCUMA
Circuma, or tumeric starch ([Fig. 11]), though of the arrowroot class, is quite distinct in appearance from these we have described, being most irregular in outline, so that it is impossible to define its shape or to do more than to refer to the illustration. Many of the granules are long and narrow and drawn out to quite a point. The rings are distinct in the larger, and the size is about that of Maranta.
Ginger starch ([Figs. 12, 13, and 14]) is of the same class as potato and Maranta and several others which are of underground origin. In outline, it is not oval like those named, but is more rectangular, having more obtuse angles in the larger granules and being cylindrical or circular in outline in the smaller; its average size is nearly the same as Maranta starch, but it is much more variable in size and form, the rings being scarcely visible even with most favorable illuminations. [Fig. 12] shows ginger adulterated.
Fig. 15. BEANS
Fig. 16. Beans
Fig. 17. PEAS
Fig. 18. Peas.
Fig. 46. CINNAMON ADULTERATED
Fig. 21. Pepper
Fig. 27. RICE STARCH
Fig. 28. RICE STARCH
Fig. 29. Rice
Fig 42. P. D. PEPPER
Fig. 43. PEPPER ADULTERATED