CONSERVATION SERIES

ByHAROLD W. FAIRBANKS,Ph. D.

Lecturer, University of California; Geography Supervisor Berkeley Public Schools

A small book bringing out in a simple and interesting manner the principles of conservation of natural resources has long been wanted, or there has been little on the subject that could be placed in the hands of pupils. It is to answer this need that Fairbanks'Conservation Readerhas been prepared.

The book touches upon every phase of conservation, but it deals at greatest length with saving the soil, the forests, and wild life. It is one of the author's main purposes to arouse a stronger sentiment for preserving what remains of the forests as well as for extending their areas. This is because proper forestation will lessen the danger of floods and of erosion of the soil, and it will encourage the return of the wild creatures that are of so much economic importance and add so much to the joy of life.

The matter is presented in an easy narrative style that is calculated to arouse the intelligent interest of children. The text is illustrated with photographs of wild animals, trees, landscapes, and rarely beautiful birds, printed in colors. The subject is timely and the treatment is happy throughout.

Conservation Readershould be used as a reader or as a book for regular study in every elementary school in the country.

Cloth, vi + 216pages.

Price $1.40.

Yonkers-on-Hudson, New York

2126 Prairie Avenue, Chicago

INDIAN DAYS OF THE LONG AGO

IN THE LAND OF THE HEAD-HUNTERS

InIndian Days of The Long Agothe author gives an intimate view of Indian life in the olden days, reveals the great diversity of language, dress, and habits among them, and shows how every important act of their lives was influenced by spiritual beliefs and practices.

The book tells the story of Kukúsim, an Indian lad who is eagerly awaiting the time when he shall be a warrior. It is full of mythical lore and thrilling adventures, culminating in the mountain vigil, when Kukúsim hears the spirit voices which mark the passing of his childhood.Illustrated with photographs by the author and drawings by F. N. Wilson.

Theodore Roosevelt once said that Mr. Curtis has caught glimpses, such as few white men ever catch, into the strange spiritual and mental life of the Indians. InIn the Land of the Head-Huntersthese glimpses are shared with his readers.

The story centers about Motana, the son of the great War Chief. The mountain vigil, the wooing and winning of Naida, the raid of Yaklus and his warriors, the rescue of the captured Naida, and the final victory, celebrated by ceremonial dances, are all described. The action is rapid and the story is told in the direct, simple style of the true epic.Illustrated with thirty full-page photographs by the author.

Price $1.60 each.

Yonkers-on-Hudson, New York

2126 Prairie Avenue, Chicago

ByJ. HENRI FABRE

Selected and Arranged for Young People by Louis Seymour Hasbrouck

A new supplementary reader in nature study for the intermediate grades. A book containing a vast amount of information relating to insect life—the life story of the spider, the fly, the bee, the wasp, and other insects—told by one who was at once a lover of nature, a great scientist, and a most entertaining writer. Maeterlinck calls Fabre the "insects' Homer," and declares that his work is as much a classic as the famous Greek epic, and deserves to be known and studied as a classic.

This is the first time that Fabre's writings have been made available for school use, and the book will prove a delight to school children wherever they are given the chance to read it. No live boy or girl could fail to be interested in nature subjects presented by so gifted a naturalist as Fabre in the form of such absorbing adventures.

The many quaint sketches with which the book has been illustrated by Elias Goldberg complete its charm.

A useful index is included.

Cloth. 300 pages. Price $1.48.

Yonkers-on-Hudson, New York

2126 Prairie Avenue, Chicago

NEW-WORLD SCIENCE SERIES

Edited by John W. Ritchie

ByEdwin Lincoln Moseley

Head of the Science Department, State Normal College of Northwestern Ohio

The usefulness of nature study in the schools has been seriously limited by the lack of a suitable textbook. It is to meet this need thatTrees, Stars, and Birdsis issued. The author is one of the most successful teachers of outdoor science in this country. He believes in field excursions, and his text is designed to help teachers and pupils in the inquiries that they will make for themselves.

The text deals with three phases of outdoor science that have a perennial interest, and it will make the benefit of the author's long and successful experience available to younger teachers.

The first section deals with trees, and the discussion of maples is typical: the student is reminded that he has eaten maple sugar; there is an interesting account of its production; the fact is brought out that the sugar is really made in the leaves. The stars and planets that all should know are told about simply and clearly. The birds commonly met with are considered, and their habits of feeding and nesting are described. Pertinent questions are scattered throughout each section.

The book is illustrated with 167 photographs, 69 drawings, 9 star maps, and with 16 color plates of 58 birds, from paintings by Louis Agassiz Fuertes.

It is well adapted for use in junior high schools, yet the presentation is simple enough for pupils in the sixth grade.

Cloth. viii + 404 + xvi pages. Price $1.80.

Yonkers-on-Hudson, New York

2126 Prairie Avenue, Chicago

NEW-WORLD SCIENCE SERIES

Edited by John W. Ritchie

ByDELOS FALL

Professor of Chemistry, Albion College

To supply the need for a course that will give the preparatory training which any scientific study demands,Science for Beginnersby Professor Delos Fall was made. The aim in this text is to win the interest of pupils, to give them conceptions of nature that are fundamental, and above all to ground them in the method of science.

The subject matter has to do with the earth sciences, and principally with physics and chemistry. In the development of each topic, every advantage that the pupils' experience and interest may afford is utilized. Exercises or experiments are interspersed throughout the work, and for these only the simplest materials are required. The studies are carried to those connecting principles which permit the organization of knowledge. The book is illustrated with a number of excellent photographs and over 200 drawings of more than usual merit.

The text is adaptedfor use in grades seven, eight, and nine, or in any classes that are about to take up their first work in science. It will prove helpful to the teachers and pupils who use it directly, and its influence will continue with classes as they advance. It will thoroughly ground pupils in those ideas that are prerequisite to any right work in science.

xi + 388 pages. Price $1.68

Yonkers-on-Hudson, New York

2126 Prairie Avenue, Chicago

Edited byJOHN W. RITCHIE

The publication of books that "apply the world's knowledge to the world's needs" is the ideal of this house and it is intended that the different volumes of this series shall express this ideal in a very concrete way.

Completed

Human Physiology.ByJohn W. Ritchie, Professor of Biology, College of William and Mary. A text on physiology, hygiene, and sanitation for upper grammar or junior high schools.$1.60.

Laboratory Manual for Human Physiology.ByCarl Hartman, University of Texas. A manual to accompany Ritchie's Human Physiology.Bound in paper and cloth.60 cents and $1.00.

Science for Beginners.ByDelos Fall, Albion College, Michigan. A beginning text in general science for intermediate schools and junior high schools.$1.68.

Exercise and Review Book in Biology.ByJ. G. Blaisdell, Yonkers, N. Y., High School. A combined laboratory guide, notebook and review book for students' use. Written from the standpoint of efficiency and furnishing material for a year's work and to accompany any one of several high-school texts in general biology.Bound in strong paper.$1.20.

Trees, Stars, and Birds.ByE. L. Moseley, Ohio State Normal College, Bowling Green. A book of outdoor science for junior high schools and the upper grammar grades.$1.80.

Personal Hygiene and Home Nursing.ByLouisa C. Lippitt, University of Wisconsin. A practical text for use with classes of young women in vocational and industrial high schools, colleges, and normal schools.$1.68.

Science of Plant Life.ByE. N. Transeau, Ohio State University. A scientific and very practical text for high schools.$1.88.

Zoölogy.ByT. D. A. Cockerell, University of Colorado. A text for college use.$3.60.

Experimental Organic Chemistry.ByA. P. West, University of the Philippines. A text for college use.$3.20.

Common Science.ByCarleton W. Washburne, Superintendent of Schools, Winnetka, Illinois. Especially made for junior high schools.$1.68.AlsoManualfor above,20 cents.

Other volumes are also in preparation.

Yonkers-on-Hudson, New York

2126 Prairie Avenue, Chicago

ByMary E. Laing

Illustrations from 27 paintings by David C. Lithgow

This story gives a portrayal of the noblest of Indians—Hiawatha. It follows established facts, and bares to the reader the heart of his race. It is a convincing tale.

The training of the Indian youth is shown; the career of the hero as a warrior is told; his great work for peace with the Five Tribes is described.

Besides the story, there is an account of the historical Hiawatha; also a complete Glossary giving definitions as well as pronunciations of the new Indian words. A map of the country of the Longhouse will enable the reader to follow the journeys of the Indian people.

The book is intended as a supplementary reader in schools, being adapted to the sixth grade or above. It will also be valuable in groups of the Wood-craft League, Camp-fire Girls, and Boy Scouts.

Cloth, xxvi + 329 pages. Price $1.60.

Yonkers-on-Hudson, New York

2126 Prairie Avenue, Chicago

REGISTERED TRADE MARK

THE CHEMICAL OUTFIT

Makes You an Amateur Chemist!

You can perform a great many useful and practical chemical experiments, have a lot of fun, and learn the principles of chemistry, if you have a CHEMCRAFT outfit. And an outfit now will help you in chemistry later on.

Each CHEMCRAFT outfit is a complete chemical laboratory containing many harmless chemicals, all needed apparatus, and a Manual of Instruction giving accurate information on the subject. CHEMCRAFT is real chemistry. These outfits are now used by many schools and are endorsed by professors and teachers. You can choose your outfit from

Five Sizes=No. 0—75c. No. 1—$1.50. No. 2—$2.50. No. 3—$5.00. No. 4—$10.00

(West of Denver, Colo., 10% additional)

Sold by most toy stores and in any toy departments. If not obtainable near your home, any outfit will be delivered from the factory at the price listed. More complete descriptions will be sent Free to any boy or girl, or school authority, upon request.

Porter Products Put Science at Your Service

HAGERSTOWN—MARYLAND

The Biggest Thing of its kind in the World

It may be interesting to know which is the largest city in China—the largest river in Africa—but it ismoreimportant to know about the industrial life of your country—because when most of you go out into the world you will become active figures in the making, buying and selling of things.

The Calumet Baking Powder factories, in Chicago and East St. Louis are the largest, most modern and sanitary plants of their kind on earth. More pounds of Calumet are sold than of any other brand of baking powder.

That is because Calumet is the best purest, most dependable baking powder made; makes the finest, most wholesome, tasty pies, cakes, biscuits, doughnuts, etc.

You will find the same rule applies to everything you do in life. If you do a thing better than any one else—your services will always be in demand and you will surely be a leader in your line of work. Calumet Baking Powder is sold at a moderate price—has more than the usual leavening strength—andneverfails.

A slip in pound can tells how to get the beautifully illustrated Calumet Cook Book.

As soft as you wish; as hard as you please; but always smoother than you had dreamed. Any Venus Pencil you select glides over the paper with a restful freedom from friction.

VENUS ERASERS

12 sizes

Of the same superb quality as the Venus Pencil

Send for free sample.

At all Stationers and Stores

American Lead Pencil Co.

220 Fifth Ave., N. Y.

and London, Eng.

Transcriber's Notes:page 238: changed "diagramed" to "diagrammed" (As there diagrammed, the electricity passes out...)page 253: the Morse telegraph code is as in the original; this is not the modern International Morse codepage 383: the table of hyperlinked first letters has been added for your convenience and is not present in the originalPage 412: changed "conrcete" to "concrete" (... shall express this ideal in a very concrete way.)General: variable spelling of iodin/iodine in the original has been preservedGeneral: spelling of dioxid and chlorid in the original has been preserved

page 238: changed "diagramed" to "diagrammed" (As there diagrammed, the electricity passes out...)

page 253: the Morse telegraph code is as in the original; this is not the modern International Morse code

page 383: the table of hyperlinked first letters has been added for your convenience and is not present in the original

Page 412: changed "conrcete" to "concrete" (... shall express this ideal in a very concrete way.)

General: variable spelling of iodin/iodine in the original has been preserved

General: spelling of dioxid and chlorid in the original has been preserved

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