ERRATA. VOL. 127 (1925). Page Line 268 17 for “(1’) ’’ read “free iodine (I)” , 18 to 34 replace by ‘( From the above data we obtain for the composi-tion of the dark equilibrium mixture : I‘ = 0-02237 gm.-ion per litre. Is = 0.00174 gm.-mol. per fitre. I,’ = 040638 gm.-ion per litre. Whence we obtain a value much lower than those obtained by Maitland or BSllSt$.” 269 9 for ‘( K = 23.6 remi ‘‘ R =,7-97.” 284 I1 for ‘‘ COzPh ’’ read “ C0,Et. 305 3* for 6 ‘ L o w - ~ i n g ’’ read i 4 H~h-melting.” 722 Invert Fig. 1. 917 936 17* for L c Grafton” read ‘ 4 Al~marle.” 944 footnote for 945 1* for based ’’ read &‘ placed.” 9* atomic number of tungsten fop ‘‘ 76 ” read “ 71.” €75 ’’ reud 4‘ €155. 1456 17 for ‘6 ~~no7-7-demRthylo-~-wrydaEine ’’ read ‘( h-7-demethylo-1461 10 for XI11 ” read “ XII.” 1543 16 & 19 for naphtholbenz:,n ” read ‘‘ naphtholbenzein.” 1745 Formula 111. Plaz ‘‘ - - - before ‘‘ mfe.” 1750 7 for “ ( I X X d .‘ (X).” $-coryduEine.” 9 9 8 & 66CH -C<’*Co2Et P \COzEt (x’)” 12 add The cEmect arrangement is (IX).” lKl9 12* after was imert ‘( converted into hydrochlorides and.” 1820 6* before 6 4 of ” insert ‘& mainly.” 2403 Fig. 3 2435 3 for ‘‘ Pyridine” read ‘( Nacotine.” (ordinates) for ‘c 0 10 20,30 40 ’’ read ‘‘ 10 20 30 40 50.” From bottom