Among the recognized Anarchistic teachings seven are particularly prominent: to wit, the teachings of Godwin, Proudhon, Stirner, Bakunin, Kropotkin, Tucker, and Tolstoi. They all manifest themselves to be Anarchistic teachings according to the greater part of the definitions of Anarchism, and of other scientific utterances about it. They all display the qualities that are common to the doctrines treated of in most descriptions of Anarchism. Some of them, be it one or another, are put in the foreground in almost every work on Anarchism. Of no one of them is it denied, to an extent worth mentioning, that it is an Anarchistic teaching. 3.--THE GOAL In accordance with what has been said, the goal of our study must be to determine, first, the concept of the genus which is constituted by the common qualities of those teachings which the greater part of the men at present scientifically concerned with Anarchism recognize as Anarchistic teachings; second, the concepts of the species of this genus, which are formed by the accession of any specialties to those common qualities. 1. The first thing toward a concept is that an object be apprehended as clearly and purely as possible. In non-conceptual notions an object is not apprehended with all possible clearness. In our non-conceptual notions of gold we most commonly make clear to ourselves only a few qualities of gold; one of us, perhaps, thinks mainly of the color and the lustre, another of the color and malleability, a third of some other qualities. But in the concept of gold color, lustre, malleability, hardness, solubility, fusibility, specific gravity, atomic weight, and all other qualities of gold, must be apprehended as clearly as possible. Nor is an object apprehended in all possible purity in our non-conceptual notions. We introduce into our non-conceptual notions of gold many things that do not belong among the qualities of gold; one, perhaps, thinks of the present value of gold, another of golden dishes, a third of some sort of gold coin. But all these alien adjuncts must be kept away from the concept of gold. So the first goal of our study is to describe as clearly as possible on the one side, and as purely as possible on the other, the common qualities of those teachings which the greater part of the men at present scientifically concerned with Anarchism recognize as Anarchistic teachings, and the specialties of all the teachings which display these common qualities. 2. It is further requisite for a concept that an object should have its place assigned as well as possible in the total realm of our experience,--that is, in a system of species and genera which embraces our total experience.