JANUARY, 1918 SCHOOL SCIENCE A Journal for All Science and Mathematics Teachers Founded by C. E. Linebarger SMITH & TURTON, Publishers Published Monthly October to June, Inclusive, at Mount Morris, Illinois Entered as second-class matter March 1, 1913, at the Post Office at Mount Morris, Illinois, under the Act of March 3, 1879. Vitalize your lectures, by showing pictures of the processes you are In Chemistry, you can show industrial processes which In Botany and Zoology; Life Cycles, Ecology, Dissections, In Geology; Weathering, Work of Water, Rivers and In Physics; Mechanics, Heat, Sound, Light, Magnetism and Electricity. Lantern slides to illustrate all the above and much more are listed in our catalog S. And to project these slides there is no lantern like the Automatic Sciopticon, priced, complete with 400 Watt Gas-filled Mazda lamp, at $38.00. Write for circulars and catalogs and submit your projection problems. MCINTOSH STEREOPTICON COMPANY 410 Atlas Block, CHICAGO, ILL. Does the work of six ordinary balances. Two models: 500 or 1500 gram capacity. For further information write Detroit Automatic Scale Co. Please mention School Science and Mathematics when answering Advertisements. Α Abrasives, High-Grade. U. S. GEOL. SURVEY... Acoustic Attraction and Repulsion. C. C. KIPLINGER. Agriculture as Presented by Some of the State Normal Schools. 552 346 OREN E. FRAZEE... 820 Agriculture or Botany, Which. VESTA HOLT. 505 Albert Teachers' Agency, The.. 188 Algebra Feed the Allies, Making. FRANK M. RICH... 811 Amendment to the Constitution of the C. A. S. and M. T. 752 American Soldiers, The. ANTOINETTE FUNK... 860 Antifreezing Solutions for Automobile Radiators. BUREAU OF 478 Apparatus for Determination of the Thermal Coefficient of Expansion 605 Aquatic Resources, Exploitation of Neglected. BUREAU OF FISHERIES. 473 Articles in Current Periodicals. CHARLES H. SMITH. .92, 166 Barberry, Destroy the. DEPT. OF AGRICULTURE.. Biology in the High School. G. H. OBERTEUFFER... HAROLD B. SHINN.. Biology Teaching, Notes on. B. C. GRUEnberg.. 728 483 362 495 607 357 759 680 Birds Help School Grounds. U. S. DEPT. AGRICULTURE.. Bollworm in Mexico, May Fight Pink. DEPT. OF AGRICULTURE 207 A Calendar of Leading Experiments. CHARLES H. SMITH.. 670 670 763 762 FRANK B. WADE.... 482 568 An Elementary Study of Chemistry. FRANK B. WADE.. 482 Animal Micrology. Practical Exercises in Zoological Micro- Technique. WORRALO WHITNEY... 290 A Short History of Science. CHARLES H. SMITH.. 567 A Textbook in the Principles of Science Teaching. CHARLES H. 191 A Textbook of Botany for Colleges. WORRALO WHITNEY. 290 565 A Textbook of Precious Stones for Jewelers and the Gem-Loving Chemical Apparatus and Chemicals. CHARLES M. TURTON. Elements of General Science. CHARLES H. SMITH.. 761 Essentials of Physics for College Students. CHARLES H. SMITH... 761 194 194 Exercise and Review Book in Biology. Worralo WhitNEY... Junior High School Mathematics. First Course. HERBERT E. Laboratory Manual to Accompany Foundations of Chemistry. 569 Laboratory Study of Chemistry. C. J. PIEFER.. 570 Logarithmic and Trigonometric Tables. HERBERT E. COBB......... Microbiology. A Textbook of Micro-Organisms, General and Applied. WORRALO WHITNEY.. 290 Mycology and Plant Pathology. WORRALO WHITNEY. Scientific Method in the Reconstruction of Ninth-Grade Mathematics. HERBERT E. COBB.. 674 Second Course in Algebra. CHARLES H. SMITH.. 760 288 Stony Island-A Plea for its Conservation. CHARLES H. SMITH.. 192 The Cadet Manual. Official Handbook for High School Volunteers of the United States. CHARLES M. TURTON.... 482 The Carnegie Foundation for the Advancement of Teaching. 565 The Course in Science. R. W. OSBORNE.. 672 The Natural History of Chautauqua. CHARLES H. SMITH.. 567 761 764 The Third and Fourth Generation. CHARLES H. SMITH... Botanical and Zoological Material. Hints for Collecting. JOHN L. 52 Botanical Teaching, Opportunity and Obligation in. J. E. KIRK WOOD.. 579 Botany Laboratory Equipment. WILLARD N. CLUTE.. 492 505 349 Burn Bituminous Coals Economically, How to. BUREAU OF MINES 601 |