Final answer:
Seymour wants Muriel to read his letters.
Step-by-step explanation:
Seymour wants Muriel to read a letter or letters that he has received. In the given texts, there are several instances where characters mention letters and reading them. For example, in one passage, Helmer talks about reading his letters. In another passage, Nora asks Helmer to read his letters. Therefore, based on these passages, Seymour wants Muriel to read his letters.