I read the book many years ago and I have forgotten most of it
I think it is one of those rare things where the film was greater than the book. None of the many quotes from the film are attributed to Wells
"The Invisible Man is a 1933 science fiction film based on H. G. Wells' science fiction novel The Invisible Man, published in 1897, as adapted by R. C. Sherriff, Philip Wylie and Preston Sturges, whose work was considered unsatisfactory and who was taken off the project. The film was directed by James Whale and stars Claude Rains, in his first American screen appearance, and Gloria Stuart. It is considered one of the great Universal"