People move through shrubbery immediately after a rainstorm without getting wet.
In the scene where Doris and Tom are talking, the skull over the fireplace changes from being without a jaw to with a jaw.
Keep an eye on the utility pole that gets hit by the falling tree during the thunderstorm. It shows up intact again later in the picture. (Not a goof, just a brusque indication that it had been repaired, to justify going back to electric lights for the remainder of the movie.)
A room which has been locked since 1915 contains up-to-date (1935) fixtures.