But though that is, I suggest, the first stage in the process by which the belief in magic is evolved, it is by no means the whole of the process. Indeed, it may fairly be urged that practices which any one can perform, though no one ought to perform, may be nefarious (as simple, straightforward murder is), but so far there is nothing magical about them. And I am prepared to accept that view. Indeed, {85} it is an essential part of my argument, for I seek to show that the belief in magic had a beginning and was evolved out of something that was not a belief in magic, though it gave rise to it. The belief that like produces like can be entertained where magic has not so much as been heard of. And, though it may ultimately be worked out into the scientific position that the sum of conditions necessary to produce an effect is indistinguishable from the effect, it may also be worked out on other lines into a belief in magic; and the first step in that evolution is taken when the belief that like produces like is used for purposes pronounced by public opinion to be nefarious. The next step is taken when it comes to be believed not only that the thing is nefarious but that not every one can do it. The reason why only a certain person can do it may be that he alone knows how to do it--or he and the person from whom he learnt it. The lore of such persons when examined by folk-lore students is found generally to come under one or other of the two classes known as sympathetic and mimetic magic, or hom[oe]opathic and contagious magic. In these cases it is obvious that the _modus operandi_ is the same as it {86} was in what I have called the first stage in the evolution of magic and have already described at great length. What differentiates this second stage from the first is that whereas in the first stage these applications of the principle that like produces like are known to every one, though not practised by every one, in the second stage these applications are not known to every one, but only to the dealers in magic. Some of those applications of the principle may be applications which have descended to the dealer and have passed out of the general memory; and others may simply be extensions of the principle which have been invented by the dealer or his teacher. Again, the public disapproval of nefarious arts will tend first to segregate the followers of such arts from the rest of the community; and next to foster the notion that the arts thus segregated, and thereby made more or less mysterious, include not only things which the ordinary decent member of society would not do if he could, but also things which he could not do if he would. The mere belief in the possibility of such arts creates an atmosphere of suspicion in which things are believed because they are impossible. When this stage has been reached, when he who {87} practises nefarious arts is reported and believed to do things which ordinary decent people