An under-ice submarine of the type illustrated, fitted with large storage-battery capacity, would be able to average one hundred miles per day under the ice and about two hundred and fifty miles per day in open water. Starting from Spitzbergen, therefore, and going over Nansen's route, if the same conditions were met as he describes, the round trip to the Pole should be made in about ten days' time and in perfect comfort, as, no matter how cold the weather is above the surface, the temperature of the water is always above the freezing-point below the ice. Later I was asked to submit to the chief engineer of one of the Canadian railways plans for an under-ice cargo-carrying submarine to enable them to transport passengers, mail, and freight from their mainland terminal at Vancouver to an open harbor on the island of Victoria. Cargo-carrying submarines fitted to under-run ice fields will shorten trade routes by opening up to navigation the Northwest Passage, and will also open up new ports in northern Europe and Asia, and provide an outlet for Siberian-grown wheat and other northern products which are not now utilized because of lack of transportation facilities. Investigation of the geological formation of sea-bottoms, the flora and fauna of the sea, will be greatly assisted by bottom-creeping submarines. Fitted with powerful searchlights and moving-picture cameras, actual sea-bottom conditions may be reproduced up to depths of one thousand feet or more. The author, in 1898, succeeded in taking photographs through the windows of the _Argonaut_ by means of an ordinary kodak, and last year the Williamson brothers showed in moving-picture houses throughout the country some wonderful submarine moving pictures they had secured by the use of their collapsible submarine tube.