Society for Promoting Christian Knowledge, London, 1908, 2^nd Edition.  Hard cover, 208 pages including Index, followed by 8 pages of publications.  Red boards with black and gold lettering on front and spine, illustration on front board.  Boards have edge, corner and spine end wear, some soil and stains, small tears to cloth.  Binding sound; light age spotting on outer page block.  No jacket.  Decorative end papers; prior owner’s name on blank page between half-title and title page; black & white frontis; interior clean and unmarked; about 100 black & white illustrations.  ‘… in popular language the principle of both water and steam turbines, their general construction and arrangement, and the essential details of recent naval practice.’ (from Preface)