Some changes were made to the three classic horror stories Dracula, Frankenstein and Jekyll&Hyde for "modern readers". I didn't agree with every change, but all in all they didn't affect the underlying story.
**spoilers** For example at the end of Frankenstein the monster decides to live in the Arctic however long this may be, instead of to killing himself. This removes the finality of the original story and leaves a somewhat open ending. I'd like to think Frankenstein's creation is still somewhere out there.
Another change was a clearer description how Frankenstein creates the monster. In this retelling he uses part of his thigh instead of quote "The dissecting room and the slaughter-house furnished many of my materials".
As far as I can remember (it's been a while since I bought the book) this collections was written for children, so this might explain the afore mentioned change. Furtheremore in this version Frankenstein clearly uses electricity to bring the monster to life, like in most adaptions of the novel I've seen.