Stereologic techniques begin to play an increasing role in biologic morphology, particularly there where correlation of structure and function on a quantitative basis is sought. These powerful methods have been in use for many years - partly even for many decades - in geology, mineralogy and metallurgy, while attempts to introduce them into histology have remained rather rare until a few years ago. In order to stimulate discussion among anatomists about stereo logic methods the International Society for Stereology, an interdisciplinary society, organized a Sym posium on Quantitative Methods...