Session ICell Function in the Formation, Maintenance and Destruction of Osseous TissueChairmen: P. Gaillard, I. MacIntyre, H. J. Dulce, A. B. Borle.- The Two Faces of Resorption.- Some Remarks and Questions on Metabolic Patterns in the Family of Bone Cells.- Remodelling of the Bone Matrix.- The Origin of Bone Cells in Endochondral Ossification.- RNA Synthesis in Growing Bone.- Histochemical Studies of Chondrocyte Function in the Cartilage of the Mandibular Condyle of the Rat.- Correlation between Morphological, Biochemical, and Biophysical Effects of Parathyroid Hormone on Cell Membranes.- Vitamin D-ascorbic Acid Association in Bone Metabolism.- Lysosomes and Cartilage Resorption in Organ Culture.- Acid Hydrolases, Lysosomes and Bone Resorption Induced by Parathyroid Hormone..- Le forage des canaux de Havers.- Experimental Studies of the Non-inflammatory Vascular Pannus.- Urinary Pyrophosphate in Disorders of Bone Metabolism.- Bone Formation and Resorption in Bone Disorders.- Studies of Iliac Crest Bone from Controls and Patients with Bone Disease by Means of Chemical Analysis, Tetracycline Labelling and Histology.- Session IIResponse of Calcified Tissues to Mechanical FactorsChairman: R. Amprino.- Electro-mechanical Factors Regulating Bone Architecture.- Topographic-quantitative Study of Bone Tissue Formation and Reconstruction in Inert Bones.- Structure and Healing of Bone as a Response to Continuous and Discontinuous Strain and Stress.- Rheological Considerations in the Physical Properties of Bone.- Haemodynamic Data on the Osseous Circulation.- The Influence of Muscle Blood-flow on the Circulation in Bones.- Session IIIMechanisms of Mineralization and Diseases Related to Mineral DepositionChairmen: S. M. Partridge, B. Engfeldt, W. D. Armstrong, J. P. Aubert and H. C. G. Bauer.- A Biomolecular Survey of Calcification.- Bone Mineral Metabolism in the Rat.- Physico-chemical Methods for the Identification of Microcrystalline Basic Calcium Phosphates Prepared in Vitro.- Umwandlungsvorgänge bei Calciumphosphaten.- Some Observations on the Nature of Bone Mineral.- The Osteon Calcification as Revealed by the Electron Microscope.- Collagen and Apatite in Hard Tissues and Pathological Formations from a Crystal Chemical Point of View.- Studies of Calcification in Plants.- Crystallographic Identification of Calcium Deposits as Regards to their Pathological Nature, with Special Reference to Chondrocalcinosis.- Infrastructural and Crystallographic Study of Experimental Calcifications.- Protein Phosphorus and Phosphokinases in Connective Tissue.- The Relationship between Swelling of Hard Tissue Collagen in Acid and Alkali and the Presence of Phosphate Cross-links.- Microradiographic and Histological Observations in Primary Vitamin D-resistant Rickets.- Therapeutic Response and Effect on the Kidney of 100 Units Vitamin D Daily in Osteomalacia after Gastrectomy.- Changes in the Activities of Plasma Acid and Alkaline Phosphatases during Egg Shell Calcification in the Domestic Fowl.- Calcium Exchanges in the Aorta of the Rat.- Estimation of the 24 Hour Exchangeable Calcium Pool in Children Using 48Ca.- Transfert du calcium intestinal chez l'homme dans les maladies déminéralisantes de l'os.- Absorption of Calcium in Man: Effect of Disease, Hormones and Vitamin D.- Therapeutic Results in Renal Tubular Osteomalacia with Special Reference to Calcium Kinetics.- Etude du métabolisme du calcium chez l'homme à l'aide de calcium 45: l'ostéopétrose et l'ostéopsathyrose.- Calcium Clearance and Re-absorption in Patients with Osteoporosis,Renal Stone and Primary Hyperparathyroidism.- Session IVHormones and BoneChairmen: P. Fourman and P. H. Henneman.- Bony Targets of Non-"skeletal" Hormones.- Hormones and Calcium Metabolism.- Mode of Action of Calcitonin.- Of the Influence of Thyroxine, Thiouracil, Cortisone, Estrogen and Testosterone on Endo- chondral Ossification Utilizing Autoradiography.- The Effect of Cortisone and Anabolic Agents on Bone.- Sites and Mode of Action of Growth Hormone.- Intestinal Absorption and Skeletal Dynamic of Calcium in Acromegaly.- Session VFundamental Structure of Hard Dental TissuesChairman: H. J. J. Blackwood.- Ultrastructure of Human Dentin.- Preliminary Studies of the Ultracentrifugal and Free Zone Electrophoresis Characteristics of Neutral Soluble Proteins of Bovine Embryo Enamel.- The Development of Enamel Structure in Mammals.
