 The preface assures the reader that visitors to Lochearnhead could confirm McDiarmid's existence and his sole authorship of the book.It then praises the "unparalleled sublimity" of the book's style, which it connects with the rugged Highland landscape and offers as the reason that McDiarmid's sentences "overleap the mounds and impediments of grammar".The main text is 28 pages about the region near Lochearnhead.