This volume contains the text of the main lectures given by interna tionally recognized scientists at the Tenth European Workshop on Mo lecular and Cellular Endocrinology of the Testis, held in Capri, Italy, from 28 March to 1 April 1998. Topics include spermatogonial transplantation, germ stem cell biol ogy, regulation of meiosis and spermiogenesis, growth factors, cell sig naling and transduction, steroidogenesis, androgen-regulated genes, sperm activation and sperm factors active at fertilization and the mo lecular basis of specific pathologies of the testis. Looking back at the previous...