What purpose is served by having a man write this preface

Question

 A Narrative of the Captivity and Restauration of Mrs. Mary Rowlandson begins with a preface from a male writer who signs himself Per Amicum. What purpose is served by having a man write this preface?

Answer 1

Mrs. Mary Rowland begins A Narrative of Captivity and Restauration begins with a preface or an introduction from a male writer who signs him Per Amicum to give the text, the female writer, Mrs. Mary Rowlandson, credence as an knowledgeable, intellectual, with balanced rationality, logical rationality, and total control of her "weaker" sex as a woman with a "floating uterus" or hysteria the guise of masculine superiority or ethos by having a male introduce in the preface his aviator---Per Amicum--- a friend or supporter of the text.