Carmine (Cochineal), sulphate of baryta, bone black, &c.
Cassia (Senna), leaves of Solenostemma argel, and other foreign leaves.
Castor Oil, other oils, often small quantities of croton oil.
Cayenne, ground rice, vermilion, Venetian red, turmeric.
Champagne, gooseberry and other wines as substitutes, different colouring matters, &c.
Cheese, annatto, bole (Armenian), and other colouring matters.
Chicory, colouring matters, such as ferruginous earths, and burnt sugar, Venetian red, &c., and different flours, such as wheat, rye, beans, &c., and sometimes sawdust.
Cider, lead (as an impurity, not intentional).
Cigars, substitutions of hay and other rubbish, inferior tobacco, leaves sometimes darkened by some brown vegetable dye.
Cinnamon, cassia, clove stalks, and different flowers.