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 Heywood after Heywood and weighs 8 tons 2.5 cwt. It is inscribed with the initials AH and the Tennyson line "Ring out the false, ring in the true". His wife was the widow of his predecessor Thomas Goadsby. John Heywood's business was continued by his son John and was still in existence in the 1970s. Abel Heywood also had a son Abel who continued his business. His eldest daughter, Jane, married Robert Trimble in 1856. The Trimble family emigrated to Taranaki in New Zealand in 1875. Abel Heywood Abel Heywood (25 February 1810 – 19 August 1893) was an English publisher,