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,
Abel of Reims early modern period, Abel's name was inserted in a number of martyrologies, under a variety of dates. Examples are the 17th-century martyrology of Gabriel Bucelin, the "Martyrologium Gallicanum" (1637) of André du Saussay, and John Mabillon. The Bollandists include a "Life" of Abel under 5 August, compiled by John Pinius. Abel of Reims Abel ("fl". 744–747) was a saint and suffragan bishop of Reims in Francia, modern-day France. In the late 10th century, Folcuin wrote that Abel had been a monk of Lobbes Abbey when Bishop Ermino (d. 737) was abbot. Boniface, in a letter to a Mercian priest, states