Synthesized answer
The provided passages do not contain information about the evidence provided by the author of "An Edict by the King of Prussia." The only passage available is a title page from "The Works of Benjamin Franklin" and its page count [Passage 1]. This passage does not offer any content from "An Edict by the King of Prussia" or any details about its author or the evidence presented within it. Therefore, it is not possible to answer the question using the given material.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: The Works of Benjamin Franklin by Benjamin Franklin Pages: 564