Beer adulteration. Return of the number of cases in which samples of beer examined by public analysts under "the Sale of Food and Drugs Act, 1875," or by the chemical officers of the inland revenue, have been reported to be (1) pure; (2) adulterated; during each of the five years preceding, and the five years following, 31 December 1880; and of the number of prosecutions brought and convictions obtained in such cases during the same periods [electronic resource].