I was once called into consultation by a medical friend of very high standing in one of the best and most aristocratic Havanese families. The patient was a young American teacher who had been brought to Havana a few months before in connection with the education of a large family of children. She had been sick with yellow fever some five or six days when I saw her, and I recognized without much examination that she was fatally ill and had but a few hours to live. Her Cuban friends were devoted to her, and were willing to do anything for her comfort and recovery that their wealth could command. As is generally the case in yellow fever, her mental faculties were perfectly clear, and her physical strength good, although she died within six hours after I saw her. She was delighted to see me, and begged me earnestly to induce her friends to let her bathe her face and hands and have clean clothing; for neither of these luxuries had been granted her since she was taken sick. I urged my medical friend who had called me into the case to allow the poor girl to have these things, and I knew that he agreed with me that they could do no possible harm. He said that he would try, but that probably the only result would be that he would lose the confidence of the family and do the poor girl no good. We both urged this upon the family, but so strong was their belief that such a measure would deprive their friend of such little chance of recovery as was left that they would not consent. In times of stress and danger such as come about as the result of an epidemic of yellow fever, many tragic and cruel phases of human nature are brought out, as well as many brave and unselfish ones. Some tragedies stand out prominently in my recollection. When yellow fever was at its height in Havana, our chief commissary, an officer of the regular Army, was taken sick and his disease was soon recognized as being yellow fever. His wife had left Havana a few weeks before to make a short visit to her home in Cincinnati. I had promised that if my friend should get yellow fever, I would cable his wife. I did so, and the wife received the cable while at a dinner-party. She started for Havana at once and reached Las Animas Hospital a day or two before the Major, her husband, died. The tie between husband and wife was unusually strong, and as she was assured that hope was departing, her grief was very great. This was before we knew that the mosquito alone could convey the disease, and when we had some general idea that it was infectious, and in some way contracted by contact with fomites, and with those who were sick of the disease.