association by similarity

Imitative magic follows the law of association by similarity, while contagious magic is based on the law of contiguity.

This was response by analogy, but if I had simply said to myself that that man looked like my acquaintance, that would have been association by similarity.

Really, association by similarity is the more complex response, for it involves response to the points of newness in the present object, as well as to the points of resemblance to the familiar object, whereas response by analogy consists simply in responding to the points of resemblance.

The machinery of association by similarity is the same, with the addition of a second response, called out by the new characteristics of the present object.

The final step in this reduction was to show that association by similarity was a special case of association by contiguity.