The authors present their experience on Gallays' silver staining of vascular basal lamina--especially of microcirculary bed--in human and rat brain and spinal cord. They pointed out that the quality of impregnation was strongly influenced by a duration of formol fixation and pyridine senzibilization. When using sections of equal thickness they demonstrated this method offers a more complex angioarchitectonic pattern then India ink injection in vessels' lumina. More over the so called intercapillary bridges including their dynamics, origin and regression are uniquely revealed by this method.