Terminology of Vertebrate Melanin-Containing Cells, Their Precursors, and Related Cells: A Report of the Nomenclature Committee of the Sixth International Pigment Cell Conference.- Biological Aspects of Pigment Cell Research.- Control of Melanophores in Amphibians.- Chemistry of the Melanocyte-stimulating Hormones.- Interrelation of the Nervous and Endocrine Factors in Regulation of Melanocytes.- Cytological and Ultrastructural Aspects of Amphibian Melanophore Control.- The Adrenocorticotrophic Hormone and Mammalian Epidermal Melanocytes.- The Influence of ACTH and MSH on Human Malignant Melanoma Cells in Vitro.- Cytological and Cytophysiological Changes in the Melanocytes of the Human Iris in Tissue Culture.- An Attempt to Isolate Melanin Granules by Gel Filtration.- A New Separation Procedure for Melatonin in Extracts.- Discussion (following papers of the first day).- The Fine Structure of Melanin Granules (the Early, Mature and Compound Forms).- Some Recent Studies on the Subcellular Unit of Melanin Biosynthesis, the Melanosome.- Correlation Between Fine Structure and Activity in Fish Melanophore.- Subcellular Tyrosinase Activity and Site of Melanogenesis in Melanocytes.- Macromolecular Characterizations in Neoplastic and Dysfunctional Human Melanocytes.- Studies on the Structure of Some Synthetic Melanins.- Investigation on the Structure of Melanin in Malignant Melanoma with 3H- and 14C-Dopa Labelled at Different Positions.- On the Chemical Nature of Urinary Melanogens.- Enzymic, Metabolic, Electron Microscopic, and Clinical Characteristics of a Human Malignant Blue Nevus.- Isoenzymes in Melanoma.- Histochemical Investigations of Melanotic Tumors.- Immunological Studies on the Transplantable Hamster Melanoma.- Discussion (following papers of the second day).- The Biology of the Malignant Melanocyte.- The Developmental Fate of Melanocytes in Murine Skin.- Comparative Aspects of the Melanoma of Grey and White Horses, a Unique Proliferative Disorder of Pigment Production.- The Tyrosine-positive Amelanotic Melanoma in the Golden Hamster.- Small Pigmented Spots in Hamsters.- Experimental Melanoma in Hamsters.- Changes in the Skin of the Syrian Hamster after a Single Application of 9,10-Dimethyl-1,2-benzanthracene.- Heterotransplantation of Experimental Melanoma.- Discussion (following papers of the third day).- Epidemiology of Malignant Melanoma in Bulgaria.- Epidemiology of Melanomas in South Africa.- Epidemiology of Melanomas in Central Asia.- Melanoblastoma in Australia.- Discussion (following papers on epidemiology).- Prognostic Factors in Malignant Melanoma.- The 32P Uptake Test in Malignant Melanoma of the Skin.- Behavior of the Thermodifference Test and the 32P Cumulative Test in the Primary Tumor and Metastasis of Melanoblastoma.- Clinical Aspects of Malignant Melanoma of the Skin.- Clinical Course of Melanoblastomas of the Skin in Children.- The Treatment of Malignant Melanoma.- Clinico-experimental Studies on Radiosensitivity of Malignant Melanoma.- Morphological Changes in Malignant Melanoma Following Contact X-ray Therapy.- Radiation and Combined Treatment of Malignant Melanoma.- Combined Treatment of Malignant Melanoma of the Skin.- Prognosis and End Results of Treatment of Cutaneous Malignant Melanoma at the Gustave Roussy Institute.- Clinical and Therapeutic Considerations on Malignant Melanoma.- End Results of Surgical Treatment of Malignant Melanoma.- Chemo-surgical Treatment of Advanced Cases of Malignant Melanoma.- Clinic on Melanoma (Panel Discussion).