39 



similar preparations made from green fruit is forbidden. The sale of 

 all foods contaminated with poisonous metals, such as zinc and lead, 

 or inclosed in receptacles lined with zinc or lead alloys, is forbidden. 



Wine. Medicinal wines must not contain more than 0.002 gram of 

 total sulphurous acid, more than 0.2 gram of sulphuric acid expressed 

 in terms of potassium sulphate, or more than 0.2 gram of acetic acid 

 per 100 cc. White wines must not contain more than 0.002 gram of 

 free sulphurous acid or more than 0.018 gram of combined sulphurous 

 acid per 100 cc. Wine whose sulphurous-acid content exceeds this 

 limit is considered unwholesome and must be subjected to cellar 

 manipulation before it is sold as a beverage. Wine which has become 

 sour or turbid owing to the acetic-acid fermentation, or which has 

 deteriorated in any other way, must not be sold as a beverage. 



Beer. The addition of alkaline substances for the purpose of neu- 

 tralizing the excessive acidity of beer is prohibited. The addition to 

 beer of salicylic or boric acid is prohibited. The sulphurous-acid con- 

 tent of beer must not exceed 0.0014 gram per 100 cc. New beer or 

 beer which has become turbid by reason of the presence of yeast cells 

 or bacteria must not be sold as a beverage. 



CANTON OF ZURICH. 



The addition of all preservatives to meat, except salt and saltpeter, 

 is prohibited. 



Coffee substitutes shall be named according to the chief ingredient 

 when possible, as "chicory coffee," "malt coffee," etc. When the 

 product is a mixture of a number of substances, it shall be designated as 

 "Kaffee surrogate," and either the chief constituents shall be printed 

 on the label or all of the constituents communicated to the board of 

 health. 



O 



