710 



THE POPULAR SCIENCE MONTHLY 



PDBLICATIONS EECEIVED. 



Annual Keport of the Postmaster-General. Gov- 

 ernment I'rinting-Otfiee. Pp. lS-3. With Maps. 



Bacteriological World. Paul Paquin and J. H. 

 Kellog-g, editors. Battle Creek, Mich. Monthly. 

 Pp. 40. $2 a year, 25 cents a number. 



Bolton, H. C. Scientific Correspondence of Jo- 

 seph Priestley. Pp. '240. With Portrait. 



Butler, Amos W. The Birds of Indiana. Pp. 

 135. 



Calendar for 1892. Styles & Cash. New York. 



Carus, Paul. Homilies of Science. Chicago : Open 

 Court Publishing Co. Pp. 317. $1.50. 



Chaddock. C. G. Visual Imagery of Alcoholic 

 Delirium. Pp. 5. Eeprint. 



Commissioner of Labor. Annual Report for 

 1890. Parts I, II, and HI. Government Printing- 

 office. 



Cornell University Agricultural Experiment Sta- 

 tion. Bulletin 33. Wire-worms. Pp. 82. 



Engineering and Mining Journal. Mineral Sta- 

 tistics for 1891. New York: Scientific Publishing 

 Co. Pp. 78. 



Geikie, Archibald. Geological Sketches at Home 

 and Abroad. New York: Macmillan & Co. Pp. 

 332. $1.50. 



Green, C. H. Catalogue of a Unique Collection 

 of Cliff-dweller Eelii-s. Chicago. Pp.35. 25 cents. 



Hart, A. B. Epoch Maps illustrating American 

 EUstory. New Y'ork : Longmans, Green .k Co. 



Humanity and Health. Monthly. New York : 

 Humanity Pubhshing Co. Pp. 14. .f 1 a year, 10 

 cents a number. 



Hunt, T. Sterry. Systematic Mineralogy based 

 on a Natural Classification. New York: Scientific 

 Publishing Co. Pp. 391. $5. 



Hutchinson. Eev H. N. The Storv of the Hills. 

 New Y'ork : Macmillan & Co. Pp. 357. $1.50. 



Keller, Helen. Souvenir of the First Summer 

 Meeting of the American Association to promote 

 the Teaching of Speech to the Deaf. Washington : 

 Volta Bureau. Illustrated. 



Langley. S. P. Report of the Secretary of the 

 Smithsonian Institution. Government Printing- 

 office. Pp. 63. 



Lethabv, W. E. Architecture, Mysticism, and 

 Mvth. New York: Macmillan & Co. Pp. 272. 

 $1".75. 



Martin. G. H. Antidotes to Superstition. Lon- 

 don : Watts & Co. Pp. 154. 



New York State Reformatory. Sixteenth Year- 

 book. Illustrated. 



New York and the World's Fair. Pp. 59. Il- 

 lustrated. 



Peirce. Dr. 0. N. Sanitary Disposal of the 

 Dead. Philadelphia Cremation Society. Pp. 57. 



Philosophical Review. Bimonthlv. J. G. 

 Schurman, Editor. Boston : Ginn & Co. Pp. 12S. 

 75 cents a number. $3 a year. 



Porter, Robert P. The Eleventh Census. New 

 York : Engraving & Printing Co. Pp. 64. 



Powell, J. W. Tnnth Annual Report of i,he 

 United States Geological Survey. 2 vols. Pp. 123 

 and 774. Government Printing-Offiee. Illustrated. 



Report of Board of Engineer Officers, TTnited 

 States Navv, on Ward's Water-tube Marine Boiler, 

 etc. Pp. 82. Illustrated. 



Roads Improvement. Papers by Isaac B. Pot- 

 ter, Edward P. North, and Prof. Lewis M. Ilaupt. 

 Pp. 30. Reprint. 



School and Ct)]loge. Ray Greene Hnling, Editor. 

 Boston : Ginn & Co. Monthly. Pp.64. 20 cents a 

 number, Sl-50 a year. 



School of Applied Ethics. First Year's Work. 

 Pp. 15. 



Scott, Alexander. Introduction to Chemical 

 Theorv. London : Adam and Charles Black. Pp. 

 266, $1.25. 



Shufeldt, R. W". Where Young Amateur Pho- 

 tographers can be of Assistance to Science. Pp. 5. 

 Reprint. Illustrated. 



Smithsonian Institution. Miscellaneous Papers. 

 Some Observations on the Hevasu Pai Indians and 

 The Navajo Belt-weaver. By K. W. Shufeldt.— On 

 the Characters of some Palseozoic Fishes. By E. D. 

 Cope.— Condition and Progress of the United States 

 National Museum. B3' G. Brown Goode. — The 

 Genus Panopeus. By James A. Benedict and Mary 

 J. Rathbun.— The Pito te henua. or Easter Island. 

 By William J. Thompson. — Aboriginal Skin-dress- 

 ing. By Otis T. Mason. — Animals recently Ex- 

 tinct, etc. By Frederic A. Lucas.— The Develop- 

 ment of the American R;iil and Track. By J. ElJreth 

 W'atkins. — Department of Geology, United States 

 National Museum. By George P. Merrill. Govern- 

 ment Priniing-Office, 1891. 



Statistics of Railways. Part of Third Annual 

 Report to the Interstate Commerce Commission. 

 Government Prin ting-Office, 1891. Pp. 99. Ad- 

 vance sheets. 



Texas Sanitarian. T. J. Bennett, Editor Month- 

 ly. Austin, Texas : Sanitarian Publishing Co.. Pp. 

 72. $2 a year. 



Thornton. C. S. Report on the Condition of the 

 Cook County Normal School. Chicago. Pp. 27. 



Trimble, Henry. The Tannins. Philadelphia: 

 J. B. Lippiucott Co. Pp. 168. $2. 



United States (Geological Survey Bulletins No. 

 62. 65, 67 to 81, inclusive. Government Printing- 

 office, iS90 and 1891. 



Wright. G. Frederick. Theory of an Interglacial 

 Submergence in England. Pp. 8. Reprint. 



Wyatt, Francis. The Phosphates of America. 

 New Y'ork : Scientific Publishing Co. Pp. 187. $4. 



POPULAR MISCELLANY. 



A Defense of Examinations. — Examina- 

 tions are defended by W. H. Maxwell, in a 

 paper which he read before the National 

 Education Association at its meeting in 1890. 

 To the question, " Is examination one of the 

 means that occasion those mental activities 

 which result in knowledge, power, and skill ? " 

 Mr. Maxwell gives an aflSrmative answer, say- 

 ing : " Knowledge is not knowledge when it 

 has been merely taken in. It is not knowledge 

 until it has passed through the mind and 

 come out again in words or actions of our 

 own. Until this is done, we can not be sure 

 even that we possess knowledge. Every 

 thorough-going student has been at some 

 time or other, when confronted with exami- 

 nation questions, amazed at his own igno- 

 rance of subjects with which he fondly im- 

 agined he was thoroughly familiar. There 

 is probably no better test of a teacher's 

 ability than his power to determine, during 

 the giving of a lesson or after it has been 

 given, whether it has been mastered by his 

 pupils. And yet I have frequently seen 

 teachers of great ability astonished at their 

 pupils' ignorance of subjects which they 

 (the teachers) thought had been completely 



