Diplomacy

the science or art of conducting negotiations, arranging ee EE Se treaties, and carrying on other imha busine between nations; the ranch of knowledge which deals with the relations of independent States to one another; the agency or management of envoys accredited to a_foreign court; the forms of international negotiations,! Dippel, Johann Conrad, a German theologian and alchemist; born in 1672. He studied theology, defended the orthodox party against the Pietists, led a turbulent life at Strasburg, and then joined the Pietists until an unfortunate tractate placed him in disfavor with both parties, He then turned his attention to alchemy, and during a residence at Berlin produced the oil called after him, from which indirectly followed the discovery of Pru ian or Berlin blue. After various adventures and wanderings in Sweden, Denmark, and Germany, he died in 1784. Dippel’s Oil, the rectified form of the black fetid oil, containing ammonic carbonate, which can be obtained by the destructive distillation of animal matter, such as stag’s-horn, ivory, or blood. The cruder form was used in medicine, despite its appearance and odor, until Dippel refined it. His oil was formerly prescribed as an antispasmodic and diaphoretic, and as a hypnotic.