数量2 v. fronts, plates, ports., maps 25 cm.
一般注記Printed in Great Britain.
"Included in the present book is the period covered in my earlier works, Ironclads in action and the Downfall of Spain, but everything that appeared in those books has been re-examined critically in the light of fresh evidence, and almost every page has been compleely rewritten."--Pref., v.l, p. vii.
書誌注記Bibliography: v. 1, p. 309-317; v. 2, p. 325-331.