THE QUESTION OF THE PRESENCE OF IRON SULFIDES IN PIGMENTS

lsistoooinemssical reactiounu is applied to small illolcks olf lissome for whicin a postfixatioonu of 1-2 inn is used; it inas molso to he boummne in n-mind wineun wolrkitng with frozens sectiomss. Inudeed, before line effect coins lie seems umudem ti-me ligist nuicroscoupe, (h-me artifact could lue ti-me cause of mu false nnegative renoclioms inn the electron nuicrtlscope, such mis tiue omne sinown in fig. 3.