Final answer:
The novel Dracula by Bram Stocker mentions Seward's sanatorium, but there is no detailed physical description provided. It can be inferred that it is a secluded place where Dr. Seward provides care for his patients.
Step-by-step explanation:
In the novel Dracula by Bram Stocker, the setting of Seward’s sanatorium is not extensively described. However, there is a mention of the sanatorium in the book. In Chapter 6, when the characters are discussing their plans, Dr. Seward mentions that he has a private asylum called Carfax, which is located near Purfleet on the Thames. This asylum is likely referring to Seward’s sanatorium. Though there is no detailed physical description of the sanatorium, it can be inferred that it is a secluded place where Dr. Seward provides care for his patients.