SMALL DIFFERENCES OF SENSATION. 83 



seems clearly to be tliat this seiisatioii has no SckwiUi; and vanishes only when the diffeienee to 

 which it refers vanishes. At the same time we found the subject often overlooked this element of 

 his field of sensation, although his attention was diretrted with a (;ertain stren.nth toward it, so that 

 he marked his contidence as zero. This haijpened in eases where the judgments were so mneli alfected 

 by the diftereiice of pressures as to be correct three times out of tive. The general fact has highly 

 important practical bearings, since it gives new reason for believing that we gather what is i)iissing 

 in on(! another's minds in large measure from sensations so faint that we are not fairly aware of 

 having them, and can give no account of how we reach our conclusions about such matters. The 

 insight of females as well as certain "telepathic" i)henoinena may be explained in this way. Such 

 faint sensations ought to be fully studied by the i)sychologist and assiduously cultivated by every 

 man. 



