This is volume 1 of 6 volumes and covers Guru Nanak, the founder of Sikhism. Contents: Preface; Introduction; Life of Guru Nanak in 17 Chapters; The Japji; Asa Ki War; The Rahiras; The Sohila; Hymns of Guru Nanak; Additional Sloks. This is one of the first (and still one of the few) comprehensive books about the Sikh religion in the English language. MacAuliffe had extensive access to manuscripts of the Sikh sacred writings (the Granth), as well as support from Sikh scholars and leaders of the time.
Source and copyright Global Grey Ebooks: https://www.globalgreyebooks.com/index.html. The book can be downloaded from the Global Grey website.