Quote 31
Yet his attention had never before been so sharply and decisively arrested; and it was with a strong, superstitious prevision of success that he withdrew into the entry of the court. (2.16)
Mr. Hyde’s footsteps invoke very strong feelings in Mr. Utterson.
Quote 32
Mr. Hyde had numbered few familiars—even the master of the servant maid had only seen him twice; his family could nowhere be traced; he had never been photographed; and the few who could describe him differed widely, as common observers will. Only on one point were they agreed; and that was the haunting sense of unexpressed deformity with which the fugitive impressed his beholders. (4.18)
Nearly every character finds it difficult to properly describe Mr. Hyde; he is not exactly human, they all say.
Quote 33
Here I proceeded to examine its contents. The powders were neatly enough made up, but not with the nicety of the dispensing chemist; so that it was plain they were of Jekyll's private manufacture. (9.11)
We are given concrete evidence that Dr. Jekyll performs his own scientific experiments.