Excerpt from Questions and Answers for Inspector; Milk and Food, City and Country: Including Answers to All the Questions Asked at Past Examinations in New York City for Inspector of Milk, Meat, Poultry, Fish, Fruits and Vegetables Ans.: - This is a chemical which is usually called muriatic acid and can be obtained at any drug store. All tests in which hydrochloric acid is used should be conducted in glass or stoneware, as this acid will attack many metals, such as iron, tin, zinc, etc. It does not attack silver or gold. Care must be exercised not to spill any of the acid 'over the skin or clothing, as it will burn b'oth. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.