H. H. Spitz 
The Raising of Intelligence [EPUB ebook] 
A Selected History of Attempts To Raise Retarded Intelligence

The history of attempts to raise the intelligence of mentally retarded individuals is wrought with controversy. Spanning the years from 1800 to the present, this book offers a critical review of the methods and philosophy behind these efforts. A fascinating contribution to the long-standing debate on the malleability of intelligence and the influence of heredity and environment.