Εικόνες σελίδας
PDF
Ηλεκτρ. έκδοση

HAWKES-LUBY-TOUTON ALGEBRAS

is proved by the steady gain they have made each year. They are now used in over 3,500 schools throughout the country.

First Course in Algebra (Revised Edition)

The entire text has been rewritten and greatly simplified; new problems and exercises have been added; much simple oral drill is a feature. Altogether this book leaves little to be desired as a working text for first-year algebra classes. $1.08.

Second Course in Algebra (Revised Edition)

As in the "First Course" the revision has been made for the purpose of simplifying the text. Determinants, zero and infinity, mathematical induction and supplementary topics have been omitted. The introductory review material has been rearranged. The exercises and problems, mainly new, have been carefully graded. Work on radical equations, simultaneous equations, logarithms, and the binomial theorem has been considerably simplified. The graphical work is shortened. $1.00.

GINN AND COMPANY

[blocks in formation]

PROGRESSIVE SCIENCE TEACHER

Do you examine your students for COLOR-BLINDNESS, and discuss this defect in your classes?

Do you have a satisfactory method for quickly testing your entire class and then calling attention to the more common types of Color-blindness? The WESTCOTT TEST will enable you to do this. It consists of a Lantern Slide carefully colored to approximate the well known Holmgren Yarns with three test colors and forty carefully selected and numbered comparison colors on the same slide. A forty minute period is sufficient to test an entire class of twenty-five, and to discuss this very interesting defect. The SCHOOL SCIENCE AND MATHEMATICS says editorially concerning this slide: "It will prove to be one of the most interesting, spectacular, practical, and profitable pieces of apparatus in the laboratory." $3.00

Price of colored slide with full directions...

Colored screens for use with the above slide to show approximately how different colors appear to color-blind persons, 75cts. each, or $2.00 for set of three, covering different types of color-blindness. Two plain slides, one on the Structure of the Retina and the other on the Young-Helmholtz Theory at 40 cts. each will be found valuable in making the discussion complete,

C. M. WESTCOTT,

The full set will be sent prepaid for $5.75. When desired the set will be sent on approval. 1436 Alta Vista Blvd.,

HOLLYWOOD, CAL.

ITALIAN DIRIGIBLES SHOW 109 ACTIONS WITH ENEMY IN
ONE YEAR.

The Secolo has received word from a correspondent at the front that four Italian dirigibles were in 109 actions with the enemy between August last year and September 1, this year, and threw several tons of explosives on enemy works and objectives.

Three dirigibles were in twenty-five actions last July and in thirtythree in August. Italian airships altogether navigated 290 hours, covering 18,500 kilometers in their courses and dropping forty tons of explosives.

The record for the heaviest cargo dropped is held by the dirigible commanded by a captain with a marvelous service record. He has fought in forty-four actions. In August he effected seven bombardments, going on one occasion over the fields of Feltre and dropping 7,200 kilos of bombs.

Next is an aeroplane commanded by a valiant major who is the ace of our flyers. He has made forty-nine flights and accomplished eight bombardments. Among his feats was the passage of the Alps through the Trentino, surmounting Carre peak, 3,465 feet high, the highest of the Adamello.

The other two dirigibles were commanded respectively by a captain with twenty-one actions to his record and by a captain with twenty-five. One achieved four bombardments and the other three.

BOOKS RECEIVED.

General Science and the Economics of Daily Life, by Herbert Brownell, Teachers' College, University of Nebraska. Pages xi+383. 14x20 cm. Cloth. 1918. $1.00 net. P. Blakiston's Son & Co., Philadelphia, Pa.

Starved Rock State Park and its Environs, by Carl O. Sauer, Gilbert H. Cady and Henry C. Cowles, the University of Chicago. Pages x+148. 40 figures. 2 maps. 17x24.5 cm. Cloth, 1918. $2.00 net. The University of Chicago Press.

Surgical Nursing in War, by Elizabeth R. Bundy, Woman's Hospital, Philadelphia. Pages vi+184. 12x18.5 cm. Cloth, 1918. 75 cents. P. Blakiston's Son & Co., Philadelphia, Pa.

Elementary General Science, by Daniel R. Hodgdon, State Normal School, Newark, N. J. Pages xxii+553. 15x20.5 cm. Cloth. 1918. $1.50. Hinds, Hayden and Eldredge, Chicago.

United States Official Postal Guide. 830 pages.

17x25 cm. Cloth.

1918. $1.00. Post Office Department, Washington, D. C.

The Waterbugs and Their Cousins, by Charles D. Lewis, Berea College, Normal School. Pages xii+172. 13.5x19.5 cm. Cloth. 1918. $1.75. J. B. Lippincott Company, Philadelphia.

Four-Place Logarithmic and Trigonometric Tables, together with Interest Tables, by Louis C. Karpinski, University of Michigan. 30 pages. 13x19 cm. Paper. 1918. 30 cents. George Wahr, Publisher, Ann Arbor, Mich.

A Study of Engineering Education, by Charles Riborg Mann, The Carnegie Foundation for the Advancement of Teaching. Pages xi+139. 18.5x25 cm. Paper. 1918. The Foundation, 576 Fifth Avenue, New York City.

BOOK REVIEW.

Progressive Chemistry, a Laboratory Manual, by P. A. Davis, North High, Louis G. Cook, East High, B. T. Emerson, Central High, Jessie F. Caplin, West High, and Kate McDermid, South High, Minneapolis, Minn. 3d edition, revised. Pp. 45 exps. No diagrams. Pasteboard back, perforated and punched. 1918. Printed for the authors. Mail address: Kate McDermid, South High, Minneapolis. The particular virtues claimed for this laboratory manual by the authors are: (1) no diagrams, so apparatus can be used as supplies permic; (2) test tubes are used in place of flasks, or bottles are thus used; (3) quantities of materials called for are the minimum quantities that will serve the purpose; (4) measurement of quantity is by spoonfuls, except where accuracy is necessary or where some special end is in view or where materials are costly; (5) the questions used are such as tend to induce thought; (6) summaries of the experiments are called for, so pupils must review the experiment in hand and cften previous experiments. The forty-five experiments cover a wide range of topics, many of the later ones giving glimpse of qualitative analysis or of applied chemistry. F. B. W.

། ། ་་་

[merged small][graphic][subsumed][subsumed]

We have long endeavored to produce Laboratory Furniture superior to any other in America. We have spent much time and money in developing a line that adequately fulfills our ambition.

You have frequently heard our assurances on this point, and it may interest you to know that by far our greatest volume of business each year now comes from schools supervised by educators who have known Kewaunee equipment elsewhere.

Kewaunee

LABORATORY FURNITURE

We might put it this way: That our best advertising and sales argument is the Furniture itself.

Besides telling the truth about the leading line of Laboratory Furniture, our new Book presents hundreds of spontaneous expressions from educators who are personally familiar with its record in the class room. It will interest you.

Kewaunee Mfg. Co.

LABORATORY

[blocks in formation]

Plence mention School Science and Mathematics when answering Advertisements.

OFFICIAL JOURNAL OF

The Mathematical Association of America Is the Only Journal of Collegiate Grade in the Mathematical

Field in This Country

This means that its mathematical contributions can be read and understood by those who have not specialized in mathematics beyond the Calculus. The Historical Papers, which are numerous and of high grade, are based upon original research.

The Questions and Discussions, which are timely and interesting, cover a wide variety of topics.

The Book Reviews embrace the entire field of collegiate and secondary mathematics.

The Curriculum Content in the collegiate field is carefully considered. Good papers in this line have appeared and are now in type awaiting their turn. The Notes and News cover a wide range of interest and information, both in this country and in foreign countries.

The Problems and Solutions hold the attention and activity of a large number of persons who are lovers of mathematics for its own sake.

There are other journals suited to the Secondary field. and there are still others of technical scientific character in the University field; but the monthly is the only journal of Collegiate grade in America suited to the needs of the non-specialist in mathematics.

Send for circulars showing the articles published in the last two volumes.
Sample copies and all information may be obtained from the

SECRETARY OF THE ASSOCIATION

55 East Lorain St.

OBERLIN, OHIO

The School World

A Monthly Magazine of Educational Work and Progress

Price 6d monthly

Yearly Volumes 716 Net each

The School World provides full information on all
important changes and developments in the various
grades of British education.

Leading educational authorities and teachers of ac-
knowledged reputation are among its contributors.

The magazine is indispensable to educational workers
everywhere.

London: MACMILLAN AND CO., Limited NEW YORK: THE MACMILLAN COMPANY

Please mention School Science and Mathematics when answering Advertisements.

The entire set of back numbers of School Science and Mathematics makes the most valuable help on modern and progressive Science and Mathematics teaching which is possible for one to possess. See price list on inside back cover.

Fifty cents each will be paid for back numbers of May, 1902, Vol. II, No. 3.

War Words

Petain Camouflage Blighty Bolsheviki Barrage Fourth Arm

and hundreds more have been added to

WEBSTER'S

NEW INTERNATIONAL

DICTIONARY. For the first time you can find authoritative answers to your questions about all these new terms. FACTS are demanded as never before. Exact information is indispensable.

Never before was the New International so urgently needed in school work, and never before was it procurable at a price so relatively low.

Regular and India-Paper Editions. Write for Specimen Pages. Free to teachers, a new booklet, "Use of the Dictionary--Games with the Dictionary."

G. & C. Merriam Co., Springfield, Mass.

[blocks in formation]
[graphic]

TEACHERS OF BIOLOGY!

THE

YOUR BASE OF SUPPLIES

HE Marine Biological Laboratory is indispensable to teachers and students of zoology and botany. With its Wan exceptional opportunities for procuring biological material from land and sea, the Supply Department has for many years met the requirements of schools and colleges for zoological and botanical material, for museum and class

room.

CATALOGS: ZOOLOGY-BOTANY-MICROSCOPE SLIDES

Address Dept. S

MARINE BIOLOGICAL LABORATORY
Woods Hole, Mass.

"School Science and Mathematics" bears the same relation to progressive Science and Mathematics Teaching as does the "Iron Age" to the Hardware business. No up-to-date Hardware merchant does without his trade Journal. Every Science and Mathematics teacher should be a subscriber to the professional trade Journal, "School Science and Mathematics."

« ΠροηγούμενηΣυνέχεια »