LEE O'DONNELL, St. Edward, Boone Co., Neb. * * * * * Rare stamps, for stamps and coins. Please send list before exchanging. HENRY MAETZEL, 49 West Livingston Avenue, Columbus, Ohio. * * * * * Moss, for sea-shells. MARY J. MANSFIELD, Merrill, Powell Co., Ky. * * * * * Sand of eight different colors from Minnehaha Falls, put up separately in bottles, for foreign stamps, ocean curiosities, Indian arrow-heads or relics, minerals, woods, or anything pretty and curious. BURTIE W. MCCRACKEN, 1016 Western Avenue, Minneapolis, Minn. * * * * * I will exchange rare postage stamps, coins, or good books nicely bound, for a genuine Indian bow and arrow, a genuine Indian tomahawk, or Indian relics. Please state, when you send, what you want in return. C. HALL, 318 West Thirty-third St., New York City. * * * * * I will exchange a printing-press and complete outfit, for a magic lantern and slides, or a foot-power fret-saw. W. T. DEMAREST, 106 Varick St., New York City. * * * * * Spanish and Florida moss, for stones from Europe, Asia, or Africa. A few stones from Lake Erie, to exchange for same from other lakes or rivers; and stones from New York, for same from other States and Territories. A foreign coin, for an American newspaper printed previous to 1830; also old American coins, for others. Please send postal describing coin before sending the coin itself. H. F. KERR, 164 State St., Auburn, N. Y. * * * * * I will exchange foreign or domestic stamps with any other collector. WILLIE A. RUDD, 330 Evergreen Avenue, Brooklyn, N. Y. * * * * * Twenty-five foreign stamps, for a United States 5-cent newspaper stamp; fifty, for a 10-cent newspaper; 100, for a 25-cent newspaper. No duplicates given. EDWARD I. TIBBITTS, Sedalia, Mo. * * * * * Ocean curiosities and shells from South America, for any curiosities valuable for a museum. JOHN TSCHARNER, P. O. Box 3, Okawville, Washington Co., Ill. [_For other exchanges, see third page of cover._] * * * * * Julia F. Ehrman, Lillian E. Adams, and Walter C. Boult withdraw their names from the exchange list. * * * * * CONSTANT READER, AND OTHERS.--Asa Gray's _Botany_, Springer's _Forest Life_, Browne's _Trees of America_, Ingersoll's _Friends Worth Knowing_, and Rennie's works on Natural History (three volumes, on Birds, Elephants, and Quadrupeds), will prove useful to you. These books are published by Harper & Brothers. * * * * *