John Jacob Abel to successfully isolate the neutral base of epinephrine by adding ammonium to highly concentrated extract, a method Abel himself tried but failed due to the use of low concentration of extract. After Takamine's success, Abel himself remarked, with great candor, "The efforts of years on my part in this once mysterious field of suprarenal, medullary biochemistry, marred by blunders as they were, eventuated, then, in the isolation of the hormone not in the form of the free base but in that of its monobenzoyl derivative." Together with L.G. Rowntree and B.B. Turner, Abel devised what they called a "vividiffusion" apparatus,
John Jacob Faesch in Basel, Switzerland and had emigrated to the United States in 1764. In his later years he relocated to Boonton, New Jersey and died at Morristown NJ on the 29th May 1799. The Highlander Magazine "John Jacob Faesch, Ironmaster" by Ernst Kraus, 1974 Report of the State Geologist of NJ, 1910, Cook, 1911 John Jacob Faesch John Jacob Faesch (1729 – 1799) was a Swiss ironmaster who established the Mount Hope Iron Furnace in the Mount Hope village section of Rockaway Township, New Jersey in 1772 which played an important role in providing munitions and tools during the Revolutionary War.