(Leipzig, Johann Ambrosius Barth, 1834). Without wrappers. Extracted from ""Annalen der Physik und Chemie. Hrsg.von Poggendorff"", Bd. 31, No 5. Pp. 65-80.
First printing of the paper in which Runge discloses his discovery of carbolic acid or phenol, and how he prepared it by distilling coal.Parkinson ""Breakthroughs"", 1834 C. - Partington IV, pp. 183-84.