[A Portion of the Broad Part of the Mole]

[The Outer Wall, Showing the Parapet Pathway Sixteen Feet Above The Floor of the Mole]

[H.M.S. Vindictive's Specially Constructed Gang-Ways]

[One of the Monitors]

[H.M. Ships Iris (right) and Daffodil]

[Lieut.-Col. Bertram N. Elliot]

[Lieut.-Commander Arthur L. Harrison]

[Wing-Commander Frank A. Brock]

[Captain Henry C. Halahan]

[Vice-Admiral Sir Roger J. B. Keyes] (missing from book)