Psychic Science 591 



Moreover, some of the most skilful communicators "on the 

 other side" have taken the trouble to clinch the argument by send- 

 ing mysterious fragments of references, through several in- 

 dependent mediums in different parts of the world, nearly 

 simultaneously; fragments which are only perceived to have a 

 meaning, and that a personal and identifying one, when they are 

 all collected and compared and seen to fit into each other like the 

 fragments of a puzzle. This is what is called the system of "cross- 

 correspondence." They have also succeeded in showing scholarly 

 knowledge, appropriate to themselves, but beyond the scope of 

 anyone present, and of a grade often edifying to living scholars. 

 It is a great mistake, though one often made, to suppose that only 

 rubbish comes through. 



The last -mentioned elaborate devices how elaborate is only 

 known to painstaking students cannot reasonably be attributed 

 to mind-reading from any living person; nor can the result be 

 attributed to mere chance coincidence. It bears all the marks of 

 careful and ingenious design. The most sceptical among the 

 serious students of this kind of utterance have at length become 

 convinced that the explanation of communication from surviving 

 personalities is the only one they can think of which meets the 

 case and that covers all the facts, whatever outstanding diffi- 

 culties still surround that tremendous hypothesis. It is not one to 

 be lightly granted or prematurely published broadcast. There 

 should be no forcing of conviction. "Ears to hear" are still 

 necessary. 



More Elementary Methods 



In studying these messages, it is the phenomenon of psychic 

 control which has to be explained. There is no difficulty about 

 the physical performance itself. The problem is as to the nature 

 and identity of the controlling or communicating intelligence. 



Sometimes the hand, instead of writing, is used to point to a 

 set of letters of the alphabet exposed to view, or occasionally, 



