Ously studied by Sir Edward Frankland, who from the investigation, not of simple inorganic compounds, but of the organo-metallic derivatives, determined the kernel of the theory of valency.
The brilliant researches of Frankland on the organo-metallic compounds, and his consequent doctrine of saturation capacity or valency of elements and radicals, relieved Kolbe's views of all obscurity.
Maria in Organo, dating from 1481, with a facade of 1592 from Sanmichele's designs, contains paintings by various Veronese masters, and some fine choir-stalls of 1 499 by Fra Gioconda.
Mayer, " Spicilegium observationum anatomicarum de organo electrico in raiis anelectrias et de haematozois," (Bonn, 1873), 18, pp., Pls.; (41) F.
Analytical problems, such as the isolation of certain organic radicals, attracted his attention to begin with, but he soon turned to synthetical studies, and he was only about twenty-five years of age when an investigation, doubtless suggested by the work of his master, Bunsen, on cacodyl, yielded the interesting discovery of the organo-metallic compounds.