Methods of Mind-Training: Concentrated Attention and Memory. E-book. Formato PDF Catharine Aiken   -  Forgotten Books, 2017  - 

I AM often asked why I was led to change the methods of teaching which I had pursued with more or less suc cess for thirty years. Rather should the question be why I had adopted a method at all after so many years of teaching without any; for, in common with many others of my profession, my teaching had lacked method.