Here's a sample page:
https://itunes.apple.com/us/book/edison ... 2534?mt=11
Bob showed me a few pages on his iPad at Union, and it is impressive. Drop-downs, pop-up pages with more details, and the full-color photography I saw looked great. PLUS, as new information becomes available, it will be provided in future updates, so you'll always have the latest available version of the book.
I have no financial interest in this endeavor. I'm just pleased to see this information made available again for those who have iPads and/or Macs. Don't ask me any questions concerning this; I don't own either of these devices and I know next to nothing about computers and software. The requirements are listed in the link above. Bob monitors this forum, and I'm sure will be pleased to answer any questions put to him.
Many thanks to Bob for making this landmark book available again!
George P.