the arts of engraving and casting . . .” (47) The goldsmiths 
and many others were needed to make up the family of 
inventions that add up to “printing.” So complex is the story 
that a query has arisen: “What did Gutenberg invent?” Usher 
says (p. 247): “Unfortunately, no wholly decisive answer can be 
given, because we really have no competent contemporary 
evidence as to the details of the processes by which the various 
early books were produced.” In the same way the Ford company 
has no record of the actual procedures followed in making its 
first cars.

     The concern in the present book is to point out the 
contemporary response to this new technology, as in years to 
come historians will chart the effects of radio on the movie and 
of TV in disposing people towards the new kinds of space as, 
for example, of the small car. It seemed quite natural to