1. Compiling of test data in terms of nucleal volumes and logarithmical classification is called in question and substituted by discriminant-analytical evaluation.

2. 14 Current-mode background suppression circuit eliminates background current. Logarithmical signal conversion from current to voltage is implemented by the adaptive photoreceptor.

3. It shows up that the abscissa axis of the frequency curve, if plotted as generally usual (falsely: “with logarithmical abscissa scale”), consistently must be graduated according to a “relativizing grain size measure” of the kind of the phi-measure or the zeta-measure.