Peb. b, 1952 NOTES 8zg luted with 50 ml. of water, cooled at 0'and after neutralid zation with 2 N hydrochloric acid, precipitated by addition of 12 ml. of concentrated hydrochloric acid. After twelve h~ urs, a resinous produtt had separated, which w& freed from the supernatant liquid by d&c&ntation and heated on the steam-bath for 45 minutes with 120 rnl. Qf 20% hydro. chloric acid and for further two hours with 60 ml. of confen* trated ...
