VIII. [A Tour of Exploration]

IX. ["Fifty Dollars to the Man that Gets Them!"]

X. [A Trap of Nature's Making]

XI. [Out of the Dark]

XII. [Mr. Ironsides' Submarine—Huron]

XIII. [The Strangest Vessel on the Lakes]

XIV. [Off on a Long Chase]

XV. ["We've Struck a Submerged Wreck!"]

XVI. [In the Grasp of Calamity]

XVII. [Captain Rangler Re-appears]