 Ten years later, in a more comprehensive and more survey-style paper, “On the algebra of logic” (1880), we find Peirce’s ideas of DNLR emerge more tightly and more systematically. Below we will now summarize the developments of quantification presented in “Brief description of the algebra of relatives” (1882a), “The logic of relatives” (1883a), and “On the algebra of logic: A contribution to the philosophy of notations” (1885a plus 1885b).