Chapter I. The necessity for cheap and easy ocean transportation for the mid-west United States -- The importance of cheap transportation -- Mid-west United States needs deep water outlet to the sea -- Effect of St. Lawrence Seaway is to bring ocean front to mid-west -- Measures taken towards seaway development -- Unexpected adverse effects of the Panama Canal -- The question of remedies -- Chapter II. The saving by avoiding of reloading of transfer, storage and insurance charges -- Five agencies to transfer grain -- Congestion in normal season at the terminals -- The seaway as an aid to the mid-west farmer -- Cheapness of water haul as compared to rail haul -- Chapter III. The Great Lakes-St. Lawrence Seaway will abolish excessive shipping rates -- The regions and industries to be benefited (grain, automobile industry, packing house products, tobacco, hardwood, /limber, steel, etc.) -- Commodities to be carried -- Chapter IV. Favorable influence of the seaway on New England -- Relief of population congestion on the Atlantic seaboard -- Chapter V. The Great Lakes-St. Lawrence Seaway will have justifiable use -- Present commerce on the Great Lakes and on the river -- Answer to the objection of fog and ice -- Answer to the objection of restricted channel navigation -- Chapter VI. The kinds of ships that will use the seaway and the types that will not -- The situation with regards to return cargoes -- The influence of the seaway towards building up an American Merchant marine -- The influence of the seaway on ship building on the Great Lakes --Chapter VII. Sectional objections to the St. Lawrence Seaway in the United States and Canada -- Alternative "all American" Ontario-Hudson route and objections to it -- Comparative benefits from the seaway to Canada and to the United States -- Chapter VIII. Hydro-electric water power incidental to the navigation development -- The amounts respectively available to Canada and to the United States -- The interest in the St. Lawrence Power Development on the part of the State of New York -- Power to which Canada is exclusively entitled -- Answer to objection of United States dealers in coal -- Chapter IX. That which is already done towards seaway completion and that which remains to be done -- Review of proceeding chapters -- Six sections of operations from Duluth-Superior to the Atlantic Ocean at the Strait of Belle Isle -- Chapter X. The Great Lakes-St. Lawrence Deep Waterway treaty of July 18, 1932 -- Discussion in detail -- Chapter XI. Chicago diversion -- The treaty concluded -- Chapter XII. Cost in detail of the Great Lakes-St. Lawrence Seaway -- Many improvements counted in gross cost necessary regardless of the seaway project -- Comparison of seaway cost with that of Panama -- The seaway as a public works administration measure -- Chapter XIII. The seaway would not detract appreciable traffic from the railroads -- It would aid the western lines -- Seaway vessel and train have mutually dependent and non-competitive functions -- Chapter XIV. Ports and port districts -- The seaway's influence on the Great Lakes ports -- Ports originating exports and ports of distress -- Cooperation with the seaway of Great Lakes ports -- The necessity of port commissions and of port districts -- Chapter XV. The United States should cooperate with Canada's present disposition of willing compliance -- The seaway is primarily desired in the United States -- The 'all American" Ontario-Hudson is a neither desirable nor practicable alternative route