3. _Assumed_ (Section III.) _that fast steamers alone can furnish rapid transport to the mails; that these steamers can not rely on freights; that sailing vessels will ever carry staple freights at a much lower figure, and sufficiently quickly; that while steam is eminently successful in the coasting trade, it can not possibly be so in the transatlantic freighting business; and that the rapid transit of the mails, and the slower and more deliberate transport of freight is the law of nature:_ 4. _Assumed_ (Section IV.) _that high, adequate mail speed is extremely costly, in the prime construction of vessels, their repairs, and their more numerous employees; that the quantity of fuel consumed is enormous, and ruinous to unaided private enterprise; and that this is clearly proven both by theory and indisputable facts as well as by the concurrent testimony of the ablest writers on ocean steam navigation:_ 5. _Assumed_ (Section V.) _that ocean mail steamers can not live on their own receipts; that neither the latest nor the anticipated improvements in steam shipping promise any change in this fact; that self-support is not likely to be attained by increasing the size of steamers; that the propelling power in fast steamers occupies all of the available space not devoted to passengers and express freight; and that steamers must be fast to do successful mail and profitable passenger service:_ 6. _Assumed_ (Section VI.) _that sailing vessels can not successfully transport the mails; that the propeller can not transport them as rapidly or more cheaply than side-wheel vessels; that with any considerable economy of fuel and other running expenses, it is but little faster than the sailing vessel; that to patronize these slow vessels with the mails, the Government would unjustly discriminate against sailing vessels in the transport of freights; that we can not in any sense depend on the vessels of the Navy for the transport of the mails; that individual enterprise can not support fast steamers; and that not even American private enterprise can under any conditions furnish a sufficiently rapid steam mail and passenger marine: then,_ 7. _Conceded_ (Section VII.) _that it is the duty of the Government to its people to establish and maintain an extensive, well-organized, and rapid steam mail marine, for the benefit of production, commerce, diplomacy, defenses, the public character, and the general interests of all classes; that our people appreciate the importance of commerce, and are willing to pay for liberal postal facilities; that our trade has greatly suffered for the want of ocean mails; that we have been forced to neglect many profitable branches of industry, and many large fields of effort; and that there is positively no means of gaining and maintaining commercial ascendency except through an ocean steam mail system:_