It has been discovered that the air and conditions of the atmosphere on Mars are the same as those of our own planet, the Earth, and so astronomers have decided that Mars may be inhabited. EDITOR. DEAR MR. EDITOr: I am nine years old, and like to read about Spain and Cuba in your paper, THE GREAT ROUND WORLD, because it makes it plainer to me than the daily papers do. A long time ago I wanted to go there, but I have changed my mind. One reason why I wanted to go was, Cuba has been fighting bravely, and the murderous Spaniards have no mercy for men, women, or children, if they sympathize with the Cubans. Wishing your paper years of success, I remain, Your fond reader, CHARLIE N.S. SCOTTSVILLE, KANS., March 13th, 1897. DEAR EDITOR: I like THE GREAT ROUND WORLD much better than the history I studied before it. The reason I like it is because it tells the news of the world. I enjoy reading it so much, I am glad to see another come. I hear so much about Cuba and Spain, and other matters. Do you think there is any prospect of the Cubans gaining independence? I must stop now, but I still remain, Your affectionate reader, FOREST V. SCOTLAND NECK, N.C., March 8th, 1897. DEAR FOREST: We think it very likely that Cuba will gain her freedom before long. EDITOR. DEAR MR. EDITOr: I want to tell you of two books I have been reading. One is called "Scottish Chiefs," and the other is called "The Days of Bruce." I like them both very much. The "Scottish Chiefs" is a story of the days of Sir William Wallace, and describes very vividly the battles that took place. "The Days of Bruce" is written on the same order as "Scottish Chiefs." It tells of all the Scottish lords, and how the Bruce finally became King of Scotland. Yours truly, HARVEY V. SCOTLAND NECK, N.C., March 1st, 1897. We have received a new book for the little ones from Thompson, Brown & Co., Boston--"AEsop and Mother Goose." It is arranged as a First Reader, and a First Reader nowadays means something very bright and attractive. This book seems to be no exception to this rule. Price is 30 cents, but the publishers will mail your teacher a sample if eight (two-cent) stamps are sent them, for they wish teachers to see the book. SUPPLEMENT TO THE GREAT ROUND WORLD AND WHAT IS GOING ON IN IT. There are certain things in history which every one _must_ know.