Ofterdingen and Kropotkin

Friedrich Christian Accum, A treatise on adulterations of food, and culinary poisons: exhibiting the fraudulent sophistications of bread, beer, wine, spirituous liquors, tea, coffee, cream, confectionery, vinegar, mustard, pepper, cheese, olive oil, pickles, and other articles employed in domestic economy and methods of detecting them. London: Printed by J. Mallett, ... sold by Longman, Hurst, Rees, Orme and Brown, 1820.