Long acquainted as this Government has been with the character of the Imperial Government, and with the high principles of equity by which they have in the past been actuated and guided, the Government of the United States cannot believe that the commanders of the vessels which committed these acts of lawlessness did so except under a misapprehension of the orders issued by the Imperial German naval authorities. It takes it for granted that, at least within the practical possibilities of every such case, the commanders even of submarines were expected to do nothing that would involve the lives of noncombatants or the safety of neutral ships, even at the cost of failing of their object of capture or destruction. It confidently expects, therefore, that the Imperial German Government will disavow the acts of which the Government of the United States complains; that they will make reparation so far as reparation is possible for injuries which are without measure, and that they will take immediate steps to prevent the recurrence of anything so obviously subversive of the principles of warfare for which the Imperial German Government have in the past so wisely and so firmly contended. The Government and people of the United States look to the Imperial German Government for just, prompt, and enlightened action in this vital matter with the greater confidence, because the United States and Germany are bound together not only by special ties of friendship, but also by the explicit stipulations of the Treaty of 1828, between the United States and the Kingdom of Prussia. Expressions of regret and offers of reparation in case of the destruction of neutral ships sunk by mistake, while they may satisfy international obligations, if no loss of life results, cannot justify or excuse a practice the natural and necessary effect of which is to subject neutral nations and neutral persons to new and immeasurable risks. The Imperial German Government will not expect the Government of the United States to omit any word or any act necessary to the performance of its sacred duty of maintaining the rights of the United States and its citizens and of safeguarding their free exercise and enjoyment. BRYAN. THE WARNING AND THE CONSEQUENCE-- THE GERMAN WARNING. [On Saturday, May 1, the day that the Lusitania left New York on her last voyage, the following advertisement bearing the authentication of the German Embassy at Washington appeared in the chief newspapers of the United States, placed next the advertisement of the Cunard Line: NOTICE!