Lowell, James Russell. Conversations on some of the Old Poets. Philadelphia: David McKay. Pp. 294.
McIlvaine, Charles. The Deadly and Minor Poisons of Toadstools. Detroit, Mich.: George S. Davie. Pp. 14.
Massachusetts Institute of Technology, Boston. Department of Naval Architecture. Pp. 15.
Merton, H. W. Descriptive Mentality. Pp. 100.
Metropolitan Museum of Art. Schools. Prospectus, 1893-'94. Pp. 17.
Migula, Dr. W. Introduction to Practical Bacteriology. Macmillan & Co. Pp. 247. $1.60.
Montadon. A. L. Notes on American Hemiptera Heteroptera. United States National Museum. Pp. 8.
Murphy, J. J. Natural Selection and Spiritual Freedom. Macmillan & Co. Pp. 241. $1.75.
The Niagara Book. Illustrated. Announcement. Buffalo: Underhill & Nichols.
Nisbet. John. British Forest Trees. Macmillan & Co. Pp. 352. $2.50.
Osann, A., and Streeruwilz, W. Reports on Transpecos, Texas. Geological Survey of Texas. Austin. Pp. 56, with Plates.
Owen. "Francis Browning." Columbian and other Poems. Ann Arbor, Mich.: The Register Publishing Co. Pp. 141.
Parker, T. Jeffery. William Kitchen Parker. A Biographical Sketch. Macmillan & Co. Pp. 145. $1.50.
Picturesque Chicago and Guide to the World's Fair. Hartford, Conn.: The Religious Herald. Pp. 318. with Map.
Purdue University, Lafayette, Ind. Annual Register, etc., 1892-'93. Pp. 120.
Rathbun, Mary J. Two Monographs on Crabs. United States National Museum, Washington. Pp. 40 and 36, with Plates.
Ridgway, Robert. United States National Museum. Two Supposed New Species of Swifts. Pp. 2. — Supposed New Species of Odontophorus from Southern Mexico. Pp. 2.
Rockwell, J. E. Shorthand Instruction and Practice. United States Bureau of Education. Pp. 205, with Plates.
Salazar, A. E., and Newman, J. Q. Informe sobre el Agua de la Qebrada Berde (Brief upon the Water of the Quebreda Verde). Santiago, Chili. Pp. 16.
Scientific Alliance of New York. Proceedings of the Second Joint Meeting, March 27, 1893. Pp. 37.
Scollick, J. W. United States National Museum. On the Making of Gelatin Casts. P. 1.
Shipley, Arthur E. Zoölogy of the Invertebrata. London: Adam and Charles Black. Pp. 458. $6.25.
Shufeldt, Dr. R. W. Nesting Habits of Galeoscoptes Caroliniensis (the Catbird). Pp. 2.— Notes on the Trunk Skeleton of a Hybrid Grouse. Pp. 5.
Singeley, J. A., and Harris. G. D. Preliminary Notes on the Artesian Wells of the Gulf Coastal Slope, etc. Geological Survey of Texas, Austin. Pp. .32.
Slater Fund, John F. Proceedings of the Trustees, 183. Pp. 44.
Smith, Eugene A. The Clays of Alabama. Pp. 10.
State Reservation at Niagara. Ninth Annual Report of the Commissioners, 1891-'92. Pp. 87, with Map and Plates.
Stejneger. Leonhard. United States National Museum. Diagnosis of a New Californian Lizard. Pp. 1.
Suppression of Vice, New York Society for the. Nineteenth Annual Report, 1893. Pp. 24.
Technical Society of the Pacific Coast, San Francisco. Transactions, May 5, 1893. Pp. 82.
United States National Museum. Report for 1891. Pp. 869.
Whitman, C. O., and Allis, E. P., Editors. Journal of Morphology, May, 1893. Pp. 148.
Winslow, Arthur, State Geologist. The Geology and Mineral Products of Missouri. Pp. 20.
Yale University Observatory. Report for 1892-'93.
Youth's Companion. World's Fair Number. Pp. 36. Illustrated. Price, 10 cents.
Zoölogical Society of Philadelphia. Twenty-first Annual Report, March 21, 1893. Pp. 18.
Explosion of Kitchen Boilers.—The most common cause of the explosion of kitchen-range boilers is frost. If the pipes are frozen so that the steam raised by the fire can not escape, the danger of an explosion is very great. This should be prevented, where there is a liability of the pipes being frozen, by protecting the pipes and apparatus generally from the effects of frost. Protection may be given by covering the pipes with hair felt. Some boilers are in danger of explosion from the failure of water supply; but in the modern system of cylinder the hot-water tank is not entirely emptied, and a sufficient supply of water is usually left to carry the fire several hours. Boilers in districts where the water is "hard" may fail in consequence of the accumulation of an incrusted deposit within them and the pipes, whereby the pipes may be in time stopped up. The pipes, however, usually give warning of this danger long before it becomes imminent, In the shape of violent noises and vibrations proceeding from the apparatus, which become unendurable and have to be removed before the explosion takes place. Finally, a safety-valve is a sovereign preventive of explosions from whatever cause.
The Australasian Association.—The next meeting of the Australasian Association for the Advancement of Science will be held in Adelaide, South Australia, beginning September 25th. The meeting will be presided over by Prof. Ralph Tate, of the University of Adelaide. The presidents of sections will be: Astronomy, Mathematics, and Physics—H. C. Russell, Government Astronomer of New South Wales; Chemistry—C. N. Hake, of Victoria; Geology and Mineralogy—Sir James Hector, Director of the Geological