A comprehensive review of the Golgi apparatus and its functioning would require a multi-volume publication and not a monograph and it would be so repetitious as to discourage the reader. The requirement at this stage is for a reinterpretation of the character and functioning of this organelle since the last major interpretations have concentrated on its role in secretion and it has now been shown to be a component of essentially all cells whether or not they have been traditionally emphasized as secreting cells. As a conse- quence the efforts have been placed on the common characteristics of...