Because of the recent agitation of the pure food question throughout the country, health officers and food-inspectors, 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. Its aim is to bring together in one small book the best and simplest qualitative tests for all the common food adulterants. It contains a brief statement of the adulterants likely to be found and the reason for their use. It is hoped that it will be specially valuable to food safety labs in furnishing excellent supplementary work in qualitative analysis. But it is hoped that it will find its greatest usefulness in contributing something toward the great pure food reform. The updated version includes all protocols collected from the original Edwin M Bruce book and 210 simple protocols collected from The Joint FAO/WHO Expert Committee on Food Additives (JECFA), Food and Agriculture Organization of the United Nation Organization, 29 protocols from The Directorate of Prevention and Food Adulteration, Government of Delhi, India and Directorate of Marketing & Inspection (DMI), Ministry of Agriculture, Government of India and 129 protocols from the "Quick test for some adulterants in foods" an instruction manual developed by Food Safety and Standards Authority of India, Government of India.