Yellow fever is a much worse enemy to all people who live in warm climates than small-pox. It is a terrible disease, and often kills its victims in a few hours. All sailors and travellers in southern countries have to meet with the scourge, the sailors calling it familiarly "Yellow Jack." If it is indeed true that by inoculation people can be made proof against this awful disease, it will be one of the greatest blessings this wonderful century has given to man. As we have said, yellow fever visits our southern shores every year, though happily not often in an epidemic form. The Government has therefore sent an expert down to the affected districts to discover, if possible, where this disease comes from, and ascertain the best means of preventing it. Dr. John Guiteras was chosen as the best man to send, and he reports that it is from Cuba that this unwelcome visitor makes its yearly call on us. The doctor declares that the sanitary conditions in Cuba are dreadful. He says that nothing is done to keep the cities clean or healthy. The drainage in Havana is of the worst possible description, and in times of epidemic no attempt is made to prevent the spread of disease. There is such constant communication between Cuba and the United States that our Government has been obliged to keep three health officers in the island to report on the state of things and enforce quarantine regulations when necessary. Yellow fever breaks out regularly every year in Cuba, and the doctor declares that it would be an excellent thing for us if the Cubans were allowed to purchase their freedom under our protection, as we might then be able to induce them to put their country in a properly healthy condition, and save ourselves the trouble and cost of yellow-fever epidemics. * * * * * Prince Mavrocordato, the Greek minister who has been sent to Turkey to arrange the peace, has arrived in Constantinople, but, if all reports are true, he has not been received with the respect that he considered his due. Some little annoyance at the custom-house put him so terribly out of temper that he was on the point of turning back and refusing to enter into any negotiations with Turkey at all. He was, however, pacified, and is now in the Turkish capital, ready to begin work. The Sultan has announced positively that he does not intend to remove his troops from Thessaly until he has something surer to rely upon than a promise to pay the indemnity. He has sent supplies of winter clothing to the army, and will keep his soldiers where they are until Greece has so arranged her affairs that he can feel sure of being paid. Considering that the Powers are to take charge of the Greek treasury until he has been paid, this conduct seems rather extraordinary, but the Sultan is such an untrustworthy person himself that it is not to be wondered at that he has no faith in promises or honor.