PHYSICS.

GENERAL REFERENCES.

*Adams, J. H. Harpers' electricity book for boys. New York, Harper. ($1.75.) Manufacture, use, cost of simple electrical appliances. Illustrated.

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*Benjamin, Park. Age of electricity. New York, Scribner, ($2.)

Bonney, G. E. Electrical experiments. New York, Macmillan. (75 cents.) *Boys, C. V. Soap bubbles and the forces which mould them. S. P. C. K. (85 cents.)

Many of these experiments are easily reproduced. Interesting and instructive.

**Burns, E. E. The story of great inventions. New York, Harper. ($1.25.) **Cajori, Florian J. History of physics. New York, Macmillan. ($1.60.)

A rather complete treatise giving the work of the great scientists under the usual subdivisions of physics. Useful as a general reference, especially for the teacher. *Carnegie, Andrew. James Watt.

($1.40.)

Garden city, N. Y., Doubleday, Page & co.

*Duncan, R. K. The new knowledge. Popular account of the new physics and the new chemistry in their relation to the new theory of matter. New York, Barnes. ($2.)

*Edser, Edwin. Heat: for advanced students. New York, Macmillan. ($1.) **Fahie, J. J. Life and times of Galileo. New York, Pott. ($5.)

**Faraday, Michael. Experimental researches in electricity. New York, Dutton. (Everyman's library.) (35 cents.)

Contains Farady's most important lectures. A pioneer book in electrical science. Prof. Tyndall's personal reminiscences of the author greatly enhances the value of the book.

Fleming, J. A.

Principles of electric wave telegraphy. New York, Longmans, Green & co. ($7.50.)

A complete up-to-date treatise on methods employed in modern wireless telegraphy and telephony.
Waves and ripples. Milwaukee, Wis., Young. ($2.)

**Gibson, C. R. Electricity of to-day-Its work and mysteries described in nontechnical language. Philadelphia, Lippincott. ($1.50.)

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The romance of modern electricity. Lippincott. ($1.50.)

Scientific ideas of to-day. A popular account of the nature of matter, electricity, light, heat, etc., in nontechnical language. Lippincott. ($1.50.) *Glazebrook, R. T. James Clerk Maxwell and modern physics. New York, Macmillan. ($1.25.)

Hasluck, P. N., ed. The book of photography. Philadelphia, McKay. ($3.) **Hopkins, A. A. The scientific American cyclopedia of formulas. New York,

Munn. ($5.)

*Hopkins, G. M. Experimental science. 2 v. Munn. ($5.)

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Directions for performing a number of simple experiments and for constructing apparatus. Very good for boys and young men.

Home mechanics for amateurs. Munn. ($1.50.)

*Houston, E. J. The wonder book of light. New York, Stokes. ($1.50.)

Nature and properties of light, instruments for special uses, etc., color, X-rays and radioactivity, illumination, photography, rainbows, polarized light. Over one hundred helpful illustrations. The wonder book of magnetism. Stokes. ($1.50.) *Iles, George. Flame, electricity, and the camera. Page & co. ($2.)

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Garden city, N. Y., Doubleday,

Inventors at work. With chapters on discovery. Doubleday, Page & co.

($2.50.)

Describes the great achievements of Bessemer in the manufacture of steel; of Bell in transmitting speech along a beam of light; of Von Welsbach in perfecting the incandescent gas mantle; of Edison in applying electricity to his great inventions: and of many others whose inventions have added to the scientific progress of to-day.

Jackson, D. C. and J. P. Elementary book on electricity and magnetism and their applications. New York, Macmillan. ($1.40.)

Simple treatment requiring only an understanding of elementary physics.

Jenks, Tudor. Electricity for young people. New York, Stokes. ($1.50.)

An historical development of the subject.

Jones, F. A. Thomas Alva Edison. Sixty years of an inventor's life. New York, Crowell. ($2.)

A book for all interested in science and in life. It can not fail to stimulate and inspire any person who reads it.

Kennelly, A. E. Wireless telegraphy and wireless telephony. New York, Moffatt, Yard & co.

($1.)

*Lodge, Sir O. J. Pioneers of science. New York, Macmillan. ($2.50.)

Biographical and historical, with clear and simple statements and discussions of some of the fundamental conceptions of physics.

Signalling across space without wires. New York, Van Nostrand. ($2.) *Mach, Ernst. Popular scientific lecturcs. Chicago, Open court publishing co. ($1.50.)

Mann, C. R. The teaching of physics. New York, Macmillan. ($1.)
*Maxwell, J. C. Theory of heat. New York, Longmans, Green & co. ($1.50.)

A classic. No other book presents the deeper verities of this science to the general reader so successfully.

*Mendenhall, T. C. A century of electricity. Boston, Houghton Mifflin co. (Riverside science series. v. 1.) ($1.25.)

Norrie, H. S. Electric gas lighting. New York, Spon & Chamberlain. (50 cents.) Perry, John. Spinning tops. (New York agent.) (65 cents.)

A lecture for a general audience in simple language.

Poincaré, Lucien. The new physics and its evolution. New York, Appleton. ($1.75.)

In addition to a survey of the present trend in physical theories, it contains an excellent chapter on wireless telegraphy.

Raffety, C. W. An introduction to the science of radioactivity. New York, Longmans, Green & co. ($1.25.)

Useful as an elementary reference book.

Ramsey, Sir William. Essays, biographical and chemical. New York, Dutton. ($2.50.)

Gases of the atmosphere-the history of their discovery. New York, Macmillan. ($2.)

Rotch, A. L. Sounding the ocean of air. S. P. C. K. (85 cents.)

Use of balloons, kites, etc., for studying the upper atmosphere. Fascinating, simple, clear, briefly historical.

*St. John, T. M. How two boys made their own electrical apparatus. St. John. ($1.)

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Things a boy should know about electricity. St. John. ($1.) *Santos-Dumont, Alberto. My air ships. New York, Century. ($1.40.) Interesting narrative of author's experiences and triumphs as builder and navigator of air ships. Sloane, T. O'C. Smith, Alexander, and Hall, E. H. Teaching of chemistry and physics in the secondary school. New York, Longmans, Green & co. ($1.50.)

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Electric toy making. New York, Henley. ($1.)

Written from a pedagogical point of view. Indispensable as a reference book for the teacher. *Thurston, R. H. Heat as a form of energy. Boston, Houghton Mifflin co. ($1.25.) A history of the growth of the steam engine. New York, Appleton. ($2.50.) Thompson, S. P. Elementary lessons in electricity and magnetism. New York, Macmillan. ($1.40.)

Thompson, S. P. 4405°-13

Life of Faraday. Macmillan. ($1.25.)

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Tidy, C. M. Story of a tinder box. S. P. C. K. (70 cents.)

A history of methods of getting fire, experimental lectures.

*Tyndall, John. Heat as a mode of motion. New York, Appleton. ($2.50.) Sound. Appleton. ($2.)

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An excellent elementary reference book, especially on the relation of sound to music.

**Watkins, Alfred. Photography, its principles and applications. New York, Van

Nostrand. ($2.)

Watson, William. Text-book of physics. New York, Longmans, Green & co. ($3.50.)

The best big book of encyclopedic character.

*Whetham, W. C. D. Recent development of physical science. Philadelphia, Blakiston. ($2.)

Williams, Archibald. How it works. Nelson. S. P. C. K. ($1.25.)

*Woodhull, J. F. Manual of homemade apparatus with references to chemistry, physics and physiology. New York, Barnes. (65 cents.) Worthington, A. M. Splash of a drop. (50 cents.)

An interesting treatment of a simple phenomenon, illustrated with instantaneous photographs. **Wright, Lewis. Optical projection. New York, Longmans, Green & co. ($2.25.)

TEXTBOOKS.

Carhart, H. S., and Chute, H. N. First principles of physics. Boston, Allyn & Bacon. ($1.25.)

Coleman. Elements of physics. Boston, Heath. ($1.25.)
Crew, Henry. Elements of physics. New York, Macmillan.

($1.10.)

Gorton, F. R. A high-school course in physics. New York. Appleton. ($1.25.) Hoadley, A. Brief course in general physics. New York [etc.], American book co. ($1.20.)

Hastings, C. S., and Beach, F. E. General physics. Boston, Ginn. ($2.75.)
Hall, E. H. A textbook of physics. New York, Holt, 1911. ($1.25.)
Linebarger, C. E. A textbook of physics. Boston, Heath. ($1.25.)

Lodge, O. J. Elementary mechanics. New York, Van Nostrand. ($1.50.)
Mann, C. R., and Twiss, G. R. Physics. Chicago, Scott, Foresman & co. ($1.25.)
Merrill, G. A. An elementary textbook of theoretical mechanics. New York [etc.],
American book co. ($1.50.)

Millikan, R. A., and Gale, H. G. A first course in physics. Boston, Ginn. ($1.25.)

LABORATORY REFERENCES.

Cheston, Dean, and Timmerman, C. E. Laboratory manual. New York [etc.], American book co. (50 cents.)

Chute, H. N. Physical laboratory manual. Boston, Heath. Crew, H., and Tatnall, R. R. Laboratory manual of physics. (90 cents.)

(80 cents.)

New York, Macmillan.

Gage, Alfred P. Physical laboratory manual. Boston, Ginn. (35 cents.) Linebarger, C. E. Laboratory manual of physics for use in secondary schools. Boston, Heath. (80 cents.)

Lock, C. G. W. Workshop receipts. New York, Spon & Chamberlain.

Millikan, R. A., and Gale, H. G. A laboratory course in physics. Boston, Ginn.

(40 cents.)

Smith, C. H., Tower, W. E., and Turton, C. M. Manual of experimental physics. Ginn. (80 cents.)

HOME ECONOMICS.

FOOD.

Dodd, M. E. Chemistry of the household. Chicago, American school of home economics. ($1.)

Elliott, S. M. Household bacteriology. American school of home economics. ($1.) Norton, A. P. Food and dietetics. American school of home economics. ($1.) There is a textbook which is a combination of the above-mentioned books, bound in one volume. The price for the combination volume is $1.25.

Olsen, J. C. Pure food. Boston, Ginn. (80 cents.)

GOVERNMENT BULLETINS.

United States. Department of agriculture. Farmer's bulletins.

May often be obtained free, by application to a congressman or to the Agricultural department. It is more satisfactory, however, to send to the Superintendent of documents. Washington, D. C., in which case the price is 5 cents.

The following Farmer's bulletins may be consulted to advantage: Care of food in the home, Bulletin 249; Principles of nutrition, Bulletin 142; Cereal breakfast foods, Bulletin 249; Bread and bread making, Bulletin 389; Rice culture in the United States, Bulletin 110; Food value of corn and corn products, Bulletin 289; Sugar as food, Bulletin 93; Meats, composition and cooking, Bulletin 34; Economical use of meat in the home, Bulletin 391; Poultry as food, Bulletin 182; Fish as food, Bulletin 85; Eggs as food, Bulletin 128; The use of milk as food, Bulletin 42; The care of milk and use in home, Bulletin 363; Butter making on the farm, Bulletin 413; Cheese making on the farm, Bulletin 241; Cheese and its economical uses in the diet, Bulletin 487; The use of fruit as food, Bulletin 293; Canned fruit, preserves and jellies, Bulletin 203; Preparation of vegetables for the table, Bulletin 256; Potatoes and other root crops, Bulletin 295; Beans, peas, and other legumes, Bulletin 121; Nuts, and their uses as food, Bulletin 332.

See also the function and uses of food, Circular 48 (5 cents); Relation of nutrition investigation to home, Reprint, 1907 (5 cents); Course in cereal foods, Experimental station bulletin 20 (10 cents); Course in the use and preparation of vegetable food, Experiment station bulletin 245; Government charts on composition of food.

Barrows, Anna. ($1.)

REFERENCE BOOKS.

Principles of cookery. Chicago, American school of home economics.

A cook book differing from the ordinary cook book in that it deals with the principles of preparation as well as with specific receipts.

*Carpenter, F. G. How the world is fed. New York [etc.], American book co. (60 cents.)

A good book on the production and preparation of food. Shows the effect on commerce of the exchange of food between different nations.

**Conn, H. W. Bacteria, yeasts and molds in the home. Boston, Ginn. ($1.) Popular but scientific discussion on bacteria of yeasts and molds. Well adapted to high-school pupils.

Dodd, M. E. Chemistry of the household. Chicago, American school of home economics. ($1.)

Gives the chemistry of some of the operations as they occur in the day's work.

Elliott, S. M. Household bacteriology. American school of home economics. ($1.) Interesting book on the care of the home.

**Farmer, F. M. Boston cooking-school cook book. Boston, Little, Brown & co. ($2.) The best general cook book on the market.

*Green, M. E. Food products of the world. Boston, Whitcomb & Barrows. ($1.20.) Deals with description rather than composition,

Hill, J. McK. Practical cooking and serving. Garden city, N. Y., Doubleday, Page & co. ($2.)

Hill, J. McK. Salads, sandwiches, and chafing-dish dainties.
Brown & co. ($1.50.)

Boston, Little,

Hough, Theodore, and Sedgwick, W. T. The human mechanism. Boston, Ginn. ($2.)

An authoritative, interesting, though elementary text, dealing especially with hygiene. *Hutchinson, Robert. Food and dietetics. New York, Wood. ($3.)

To be used as a reference; not up to date.

*McKay, G. L., and Larsen, C. Principles of butter making. New York, Wiley. ($1.50.)

A good, general discussion of milk and milk fats, giving data not easily accessible elsewhere. Parloa, Maria. Home economics. New York, Century. ($1.50.)

A very helpful book, dealing with the every-day problems of the home.

*Wiley, Harvey W. Foods and their adulteration. Philadelphia, Blakiston. Especially good on origin, manufacture, and composition of food products.

($4.)

Williams, M. E., and Fisher, K. R. Elements of theory and practice of cookery. New
York, Macmillan. ($1.)

Contains good suggestions as to the science principles underlying food preparation.
Wilson, L. L. W. Handbook of domestic science. Macmillan. ($1.)
A book a little out of date but containing good suggestions.

SHELTER (TEXTBOOKS).

Bevier, Isabel. The house. Chicago, American school of home economics. ($1.) A brief account of the development, construction, and decoration of the house.

Elliott, S. M. Household hygiene. American school of home economics. ($1.) Interesting and valuable book on the care of the house.

Terrill, Bertha. Household management. American school of home economics. ($1.)

Practical discussion of housekeeping as a profession, operation expenses of each department, organization and division of labor, furnishings, food; clothing and higher life of the household. N. B. The preceding three books are found in 1 volume for $1.25.

REFERENCE BOOKS.

Abbott, Edith. Women in industry. New York, Appleton. ($2.)
Thorough, readable study of women as a factor in American economic history.

*Addy, S. O. Evolution of the English house. London, Sonnenschein. ($1.15.) Excellent for the study of early English homes.

Allen, J. J. Sanitation in the modern home. Dom. eng. co. ($2.)

Readable text on sanitation.

*Clark, T. M. The care of a house. New York, Macmillan. ($1.50.) Very helpful work on construction, equipment, and care of the house.

Currier, C. G. Practical hygiene. New York, Treat. ($2.)

Technical text on sanitation.

*Daniels, F. H. The furnishing of a modest home. Chicago, Atkinson, Mentzer & co. ($1.)

An excellent book giving practical suggestions.

Earle, A. M. Colonial days in old New York. New York, Scribner. ($1.25.)

Home life in colonial days. New York, Macmillan. ($2.50.)

Mason, O. T. Woman's share in primitive culture. New York, Appleton. ($1.75.) Good as a reference as to the origin of many industries.

Richards, E. H. Art of right living. Boston, Whitcomb & Barrows. (50 cents.) The cost of living. New York, Wiley. ($1.)

Suggestive books showing the effect on the household of modern conditions.