Studies on the purification and identification of histones Human rights as rights : The Philosophy of Human Rights Contemporary Controversies The justification of property rights QUE CAO ESCOLHER E COMO CUIDAR DELE Abnormal properties of histones from malignant cells. AGAINST EQUALITY OF OPPORTUNITY Minor elements in igneous and metamorphic apatite The fractionation of histones on Sephadex G-75. Against Individualistic Justifications of Property Rights Human Rights and Positive Duties