He noticed that his mouse had certain songs for certain occasions. When she had awakened from a long sleep, and had taken some nice food, she would sing her great aria, which he called the "Grand Role." When she jumped into her wheel for a spin, she had another kind of song, which he called the "Wheel Song." She had another song that she used for state occasions, and this was so silvery and sweet, that those who heard it declared that no canary could imitate it. It is a pity that such a pretty and curious kind of creature should have been killed through ignorance. GENIE H. ROSENFELD. We have another true story of a singing mouse, which will be published in "THE GREAT ROUND WORLD Animal Story-Book."--EDITOR. Letters From Our Young Friends. DEAR MR. EDITOR: I take THE GREAT ROUND WORLD and like it very much. I am interested to know what has become of Robinson Crusoe's Island, as I have not seen anything about it lately. I hope there will be something about it soon. Yours truly, NEW YORK, Feb. 19th, 1897. FREDERICK D. P.S.--We have a club every Saturday morning, and we read THE GREAT ROUND WORLD. DEAR FREDERICK: We have had no further news about Crusoe's Island. Rest assured that we will tell our young friends when anything more is heard of or from the island of Juan Fernandez. THE EDITOR. DEAR MR. EDITOR: I have of late become deeply interested in your delightful little paper, THE GREAT ROUND WORLD, and as I saw many of the enthusiastic readers writing to you, and asking different requests, I thought I would follow their example. I use your little book for different purposes. At school we have to begin topics, and I get a great deal of information from your little paper. I also spend many happy moments reading its contents. I wish you would send me the names of a few good books. I do not want anything like fairy tales, but something on the order of "Six Girls," by Miss Irving, or "Little Women"; or I would be more pleased with the names of a few good boarding-school stories. I would also like you to explain the relationship between Noah and Daniel Webster. Hoping I will receive an answer in a short time, I remain, Your interested reader, CINCINNATI, O., Feb. 22d, 1897. GRACE G. DEAR GRACE: We are very glad you take pleasure in THE GREAT ROUND WORLD, and that you find it useful. We are told by a girl who is fond of reading, that "A World of Girls," by Mead, is the most delightful school story ever written. "Jackanapes," "Six to Sixteen," "A Flat-Iron for a Farthing," are all three by Mrs. Ewing, and are charming books. "An Old-Fashioned Girl," and Miss Yonge's "Pillars of the House," are both interesting.