Calcitonin: Proceedings of the Symposium on Thyrocalcitonin and the C Cells presents a critical review of studies on the purification of Alpha and Beta thyrocalcitonin. The book discusses the histopathological investigation on C cells, as well as the nature of parafollicular cells. Some of the topics covered in the text are the pharmacologic and toxicological effects of porcine thyrocalcitonin in animals; the observation of the effect of thyroidectomy in patients with high thyrocalcitonin secretion; and the definition of chronic calcitonin deficiency. The radiological and histological bone changes produced by calcitonin; calcitonin as an ultimobranchial hormone; and the effects of calcium intake levels on the response to exogenous rat are also covered. The book further tackles bone culture studies with thyrocalcitonin; the observation made on the dense granules in bat thyroid parafollicular cells; and the study of the bovine parturient paresis and hypocalcemia. A chapter is devoted to the inhibition of thyrocalcitonin bone resorption in tissue culture. Another section focuses on the methods for secretory granules staining. The book can provide useful information to scientists, immunologists, students, and researchers.