When STIEVE published his work on male reproductive organs in this handbook in 1930, a definitive treatment of the morphology of the accessory sex glands seemed accomplished. Nevertheless, the increasing bulk of scientific literature published in the last years on this topic has demonstrated that new methods, e. g., developments in the fields of electron microscopy, cytochemistry and auto radiography, pose new questions. These principally morphological techniques have yielded new insights into the fine structure and functional organization of these glands. The stress, however, lay on...