Gray, Elisha. Nature’s Miracles. Familiar Talks on Science. Vol. I. Earth, Air, and Water. New York: Fords, Howard & Hulbert. Pp. 243. 60 cents. Highsmith, George R. Contributions of the Medical Profession to General Literature and Collateral Sciences. Pp. 18. Hinrichs, Gustavus D. The Present and Future Water Supply of St. Louis. Pp. 15. Hollick, Arthur. Some Features of the Drift of Staten Island, N. Y. Pp. 12, with plate; The Relation between Forestry and Geology in New Jersey. Parts I and II. Pp. 221. MacDougal, D. T. The Nature and Work of Plants. New York: The Macmillan Company. Pp. 218. 80 cents. Manning, Warren H. Directions for Surveying and Arranging Home and School Grounds. Boston, Mass. Pp. 12. Marriott, H. P. F. The Secret Societies of West Africa. London: Harrison & Sons. Pp. 4. Martens, Adolf. Handbook of Testing Materials. Part I. Vol. II. Illustrations. New York: John Wiley & Sons. Pp. (plates and explanations) 240. Mexico. Boletin del consejo Superior de Salubridad. (Bulletin of the Superior Sanitary Council.) Mexico, January, 1900. Pp. 32. Roisel. Essai de Chronologie des Temps Prehistoriques. (Essay on the Chronology of Prehistoric Times.) Paris: Félix Alcan. Pp. 60. 1 franc. Schufeldt, R. W. Notes on the Mountain Partridge in Captivity. Pp. 4, with plate. Scientific Alliance of New York. Ninth Annual Directory. Pp. 60. 25 cents. Siebel, J. E. Compend of Mechanical Refrigeration. Chicago: H. S. Rich & Co. Pp. 389. Price, $3. South Kensington Museum (London). Catalogue of the Collection of Pottery and Porcelain illustrating Popular British History, Lent by Henry Willett, Esq. Pp. 123. Trelease, William. Classification of Botanical Publications. Pp. 12. Williams, Thomas A., Editor. The Asa Gray Bulletin. Devoted to Plant Life in Field, Forest, and Garden. Bimonthly. February, 1900. Pp. 26. Transcribers’ Notes Punctuation, hyphenation, and spelling were made consistent when a predominant preference was found in this book; otherwise they were not changed. Simple typographical errors were corrected; occasional unbalanced quotation marks retained. Ambiguous hyphens at the ends of lines were retained. Page 22: “the city to-day would drive from that source” may be a misprint for “derive”. Page 54: “each of the tactile organ” probably should be “organs”. Page 68: “beauxite” was spelled that way. Page 107: Unmatched quotation mark in paragraph beginning “Geological Formations”. End of the Project Gutenberg EBook of Appletons' Popular Science Monthly, May, 1900, by Various