The memorandum proceeded to declare that the United States had not accepted even these far-reaching concessions, and that the good offices of the pope had been equally unavailing. It asserted that the Maine accident was used by political parties in America as a means of hurling "most gratuitous and intolerable calumnies at the Spanish government," and yet, the document said, Mr. Olney, in an official note dated April 4, 1896, to the Spanish minister in Washington, himself expressed very serious apprehensions lest the only existing bond of union in Cuba should disappear in the event of Spain withdrawing from that island. Mr. Olney, as the memorandum argued, feared at that time that a war of races would ensue, all the more sanguinary in proportion to the experience and discipline acquired during the insurrection, and that two republics would at once be formed--one white, the other black--the upshot being that one of the two would swallow the other. The grave view thus taken by Mr. Olney of the future of Cuba freed from Spain's rule was then enlarged upon, and inevitable racial wars were foreshadowed, which were "certain to wreck the existence of Cuba as a state, should Spain be deprived of sovereignty" over the island. Thus, being convinced, as Spain was, that right and equity are on her side "she will not and cannot surrender her sovereignty in Cuba." TROUBLE FOR SPAIN AT HOME. Spain's embarrassments at home were multiplying, and threatening danger only less than that from the hostilities of the United States. Twenty thousand republicans of all shades of opinion in Madrid signed and addressed to Senor Castelar, the republican leader, under the pretext of congratulating him upon his recovery from recent sickness, but in reality offering him their services if he would proclaim a republic. At the same time Don Carlos, the pretender to the Spanish throne, was a disturbing element, threatening a revolution against the present dynasty if an opportunity were to offer. During all these complications, which included at one time even a threat that the Spanish ministry would resign, there was no discordant note of any sort in the United States. Secretary of State John Sherman and Postmaster General Gary resigned from President McKinley's cabinet because of ill health, in order that the government might be in no way handicapped during the time of emergency. Secretary Sherman was succeeded by Assistant Secretary Judge William R. Day of Canton, Ohio, who had displayed remarkable aptitude for the office during his term of service, while Mr. Gary's successor was the Honorable Charles Emory Smith, of Philadelphia, a newspaper editor and formerly ambassador to Russia. ALONG THE CUBAN COAST.