The Science of Mnemonics. 223 
if you doubt its power. Tell a number of small children 
the simple fact that St. Paul’s Cathedral was erected by 
AS 
ol 4 NN Sy \ 
A 
; 
4 i 
\ a a \ 
simultaneous operation of lingual, aural, visual, and 
intellectual association. 
Thing lo he remembered. 
Diagram illustrative of the 
the architect Wren, and the majority of them probably will 
soon forget that which you have said. Then convey the 
fact symbolically, as given, and if the symbol is not more 
powerful than the ordinary verbal statement, it will be 
strange. 
Now should this picture seem to make 
Associations slender, | 
Just use the last word of this rhyme, 
Which strong the link may (w) render! 
Impressions made thus to minds that are awake to this 
mode of action, are very quick and enduring. Availing 
