The growing number of persons engaged in intermediate trade has led to many evils. Though the persons thus engaged work hard and are frequently burdened with care, most of them form a class of parasites who are unproductive and live on the products of the labor of others as well as the employing class. An increased cost of living is the inevitable result of intermediate trade. The price of provisions is thereby raised to such extent that they sometimes cost twice and three times as much as is obtained by the producer.[207] But if provisions can not be raised in price any more, because a further raise would limit the consumption, they are diminished in quantity and quality, adulteration of food and the use of incorrect weights and measures is resorted to. The chemist Chevalier reports that among various articles of food he found the following number of methods of adulteration: coffee, 32; wine, 30; chocolate, 28; flour, 24; whiskey, 23; bread, 20; milk, 19; butter, 10; olive oil, 9; sugar, 6, etc. A great deal of fraud is practiced in the grocery stores with goods that have been previously measured or weighed and packed. Frequently only 12 or 14 ounces are sold for a pound, and in this way the lower price is made up for. Workingmen and other persons of small means suffer most from these fraudulent methods, because they are obliged to buy on credit and must therefore hold their peace even where the fraud is perfectly evident. In the bakery trade also incorrect weight is frequently resorted to. Swindle and fraud are inevitably linked with our social conditions, and certain institutions of the state, for instance high indirect taxes and duties, favor swindle and fraud. The laws enacted against the adultery of food accomplish but little. The struggle for existence compels the swindlers to resort to more cunning methods, and a thoroughgoing and severe control rarely exists. Serious control is also made impossible because it is claimed that in order to detect every adultery, an expensive and extensive organization would be required and that legitimate business would also be damaged thereby. But wherever the control does interfere successfully, a considerable increase in prices ensues, because the low prices were possible only by means of adulteration.