When I was a boy I loved all his books. The most treasured was this one:
http://en.wikipedia.org/wiki/In_Search_of_the_Castaways
This one is not about predicting the future and contains very few science fiction elements, but it is absolutely great adventure story.
I can't wait until my daughter is big enough to appreciate this story, so I can read it to her from my very old, tattered copy with beautiful woodcut (metalcut?) illustrations. I have inherited this one from my father. It used to be his favorite book ;-)
you should also read
http://en.wikipedia.org/wiki/Two_Years%27_Vacation
and ...
All the books you find here
https://www.mobileread.com/forums/ebo...desc&forumid=0