ABSTRACT
Unfortunately it is not easy to define what we mean by recognition. I recognize a pencil as a pencil, and my special pencil as my pencil; but in a sense this latter effect will occur only if I see it among others and not when I take it out of my pocket. A similar example is given by Maccurdy: "If I meet one of my students 1 in London I recognize him; if I see the same man in my lecture room in Cambridge I do not recognize him, although I know he is there" (P·1I3)·
Still, we are dealing with different cases, and the theory of recognition finds itself continually hampered by that difficulty. How the difference between class-and individual recognition makes it impos-
sible unambiguously to evaluate her own quantitative results has been pointed out by von RestorfI.
