International Correspondence School, Scranton, Pennsylvania. Short Courses in English Branches, Bookkeeping, Stenography, and Mechanical and Ornamental Drawing. Pp. 16. Jacobs, Joseph. The Story of Geographical Discovery. New York: D. Appleton and Company. (Library of Useful Stories.) Pp. 200. 40 cents. Kingsley, Mary H. West African Studies. New York: The Macmillan Company. Pp. 633, with maps. $5. Library Notes, Vol. IV, No. 16. Edited by Melvil Dewey. Simplified Library School Rules. Pp. 72. Quarterly. 50 cents. $1 a year. Lille, Société Photographique de. Le Nord Photographie. January, 1899. (Sixth year.) Lille, France. Pp. 20. Mason, William P. Examination of Water (Chemical and Bacteriological). New York: John Wiley & Sons. Pp. 135. $1.25. Macalaster, The. Monthly. February, 1899. St. Paul, Minnesota, Macalaster College. Pp. 32. 15 cents. $1 a year. Parsons, Frances Theodora. How to Know the Ferns. New York: Charles Scribner's Sons. Pp. 215. $1.50. Rafinesque, C. S. Ichthyologia Ohioensis; or, Natural History of the Fishes inhabiting the River Ohio and its Tributary Streams. A reprint of the original, with life, etc. By R. Ellsworth Call. Cleveland, Ohio: The Burrows Brothers Company. Pp. 175. $4. Reprints. Ashmead, Albert S., M. D. No Evidence in America of Pre-Columbian Leprosy. Pp. 10.--Grant, Sir James. The Alimentary Canal and Human Decay In Relation to the Neurons. Pp. 8.--Hopkins, Thomas C. Clays and Clay Industries of Pennsylvania; I, Clays of Western Pennsylvania (in part). Pp. 183.--Howard, L. O. The Economic Status of Insects as a Class. Pp. 33.--Jackman, Wilbur S. Constructive Work in the Common Schools. Pp. 18. Russell, Frank. Explorations in the Far North. University of Iowa. Pp. 290. Schiavone, Mario. Il Principio della dirigibilita orizzontalie degli aerostate ed Binaerostato (The Principle of the Horizontal Dirigibility of Aërostats and the Binaërostat). Potenza, Italy. Pp. 48. Schubert, Hermann. Mathematical Essays and Recreations. Translated by T. J. McCormack. Chicago: The Open Court Publishing Company. Pp. 149. 75 cents. Scrutten, Percy E. Electricity in Town and Country Houses. Second edition. New York: The Macmillan Company. Pp. 148. $1. Sloyd Bulletin No. 2, March, 1899. Boston: Sloyd Training School. Pp. 21. Smithsonian Institution publications: Annual Report of the Board of Regents to July, 1896. Pp. 727; do. to July, 1897. Pp. 686.--Bolton, H. C. A Select Bibliography of Chemistry, 1492 to 1897. First Supplement. Pp. 489.--Cook, O. F. African Diplopoda of the Genus Pachybolus. Pp. 10, with plates. Society of American Authors. Monthly Bulletin. March, 1899. Pp. 16. United States Commissioner of Education (W. T. Harris). Report for 1896-'97, Vol. II. Pp. 1245. Veblen, Thorstein. The Theory of the Leisure Class. New York: The Macmillan Company. Pp. 400. $2. Waddell, John. The Arithmetic of Chemistry. New York: The Macmillan Company. Pp. 137. 90 cents.