Italics in the original work are here represented _between underscores_, bold face text is represented =between equal signs=. Small capitals from the original work are here represented by ALL CAPITALS. Because of the recent agitation of the pure food question throughout the country, health officers, food-inspectors, and chemistry teachers and students are constantly called upon to test the purity of various foods. And this usually involves nothing more than making simple qualitative tests for adulterants. In view of the fact that there is now no text or manual devoted exclusively to the qualitative examination of foods, this little book is offered to those who are interested in this work.…
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