10 



In addition to the above, only the following colors may be added to 

 food: 



White. Tragacanth. 



Red. Cochineal, carmine, kermes, infusion of red poppy. 



Yellow. Saffron, safflower, turmeric. 



Blue. March violet, blue bottle, indigo, prussian blue, ultramarine, sea blue 



(form of artificial ultramarine). 

 Green. Spinach juice. 

 Violet. Cochineal infusion with lime water. 

 Gold. Pure gold leaf. 

 Silver. Pure silver leaf. 



Wrappers for confections, coffees, and other varieties of food must 

 either be white or prepared from material which is naturally colored. 

 If a wrapper which is artificially colored be employed, a second wrap- 

 per of the character above described must be placed between it and 

 the inclosed product, and no artificially colored wrapper may be used 

 in any case to inclose any but a dry, solid material. The use of wrap- 

 pers containing copper salts is especially prohibited. 



RECEPTACLES. 



Food receptacles and utensils intended for the preparation of food 

 must not be either partially or entirely composed of an alloy contain- 

 ing more than 10 parts of lead per 100 parts of the alloy. The inside 

 of such receptacles must not be coated with tin which contains lead. 

 Such receptacles must not be soldered with an alloy containing more 

 than 10 per cent of lead. In case of glazed and enameled ware, lead 

 must not be present in such state that it will be dissolved by boiling 

 one-half hour with a 4 per cent solution of acetic acid. The glass or 

 enamel must not be so attached to the vessel that it will scale off. 

 Metallic parts of nursing bottles must not contain more than 1 per 

 cent of lead. Metal foil, which is used as a wrapper for such prod- 

 ucts as snuff and tobacco, must not contain more than 1 per cent of 

 lead. Vessels which have been cleaned with the aid of leaden shot 

 must not be used as receptacles for food products. The sale of food 

 products which have been ground with millstones filled with lead or 

 an alloy containing lead is prohibited. 



Rubber or caoutchouc which contains lead or zinc must not enter 

 into the composition of such articles as nipples of nursery bottles, 

 rubber rings, nipple shields, etc., or as receptacles for such articles 

 as beer, wine, vinegar, and preserves, or of vessels which are to be 

 used in the preparation of food products or as receptacles for the 

 same. 



If antimony sulphid enters into the composition of vessels which 

 are used in connection with food products, it must be so prepared that 

 no antimony is dissolved by a dilute solution of tartaric acid. Copper 

 and brass vessels must not be used in the preparation of foods unless 



