Hormonal Steroids contains the plenary and symposium lectures delivered to the Fifth International Congress on Hormonal Steroids held at New Delhi on October 30 to November 4, 1978. The plenary lectures include biochemical actions of trophic hormones and steroids on steroid production and spermatogenesis in testes; chemical reactions of steroids which imitate the selectivity of enzymatic transformations; and human chorionic gonadotrophin and ovarian and placental steroidogenesis. Symposia papers comprise of water-soluble steroidal anesthetics; quality control of radioimmunoassay of hormones in reproductive physiology; automation of steroid radioimmunoassay for clinical and research purposes; non-radioisotopic homogeneous steroid immunoassays; mechanisms involved in the regulation of steroid receptor levels; and metabolic effects of corticosteroid therapy in post-menopausal women.