French
Literary
Biographies.

French Historical

raphies.

DUFF, RT. HON. SIR MOUNTSTUART E. G., G.C.S.I., M.A., P.C., F.R.S., D.L., formerly Lord Rector of Aberdeen University; Under-Secretary of State for India (1868-74); Under-Secretary for the Colonies (1880-81); Governor of Madras (188186); formerly President of the Royal Geographical and Royal Historical Societies; Editor of "Victorian Anthology."

Subjects and Blog- GRANT, ARTHUR J., M.A., Professor of History and Dean of the Faculty of Arts, University of Leeds; Author of "The French Monarchy," etc.

German Literary
Biographies.

Scottish
Biographies.

Irish Subjects and
Biographies.

The Coleridge
Family, etc.

John
Ruskin.

Saxo

Grammaticus.

George Berkeley,
John Locke.

KEARY, CHARLES F., Novelist and Historical Writer, formerly
Member of the Staff of the British Museum.

RIPPMANN, WALTER, Professor of the German Language at
Queen's College, London.

CROCKETT, REV. WILLIAM S., Author of "The Scott Country,'
"Sir Walter Scott," "Robert Burns," "Minstrelsy of the
Merse," "The Border Country," etc.

HENDERSON, T. F., Author of many Scottish historical works.

MORRIS, JUDGE WILLIAM O'CONNOR, formerly Irish County
Court Judge.

COLERIDGE, ERNEST HARTLEY, M.A., formerly Secretary to the
late Baron Coleridge, Lord Chief Justice of England; Editor
of "Letters of S. T. Coleridge," "Poetical Works of Lord
Byron," "Life and Letters of Lord Coleridge," etc.

COLLINGWOOD, WILLIAM G., M.A., F.S.A., formerly Secretary to
Ruskin; Author of "Life of Ruskin."

ELTON, OLIVER, M.A., Professor of English Literature, University College, Liverpool; Author of "Mythical Books of Saxo Grammaticus," "Historia Danica," etc.

FRASER, ALEXANDER C., D.C.L., LL.D., Litt.D., F.R.S., Edinburgh, Emeritus Professor of Logic and Metaphysics, Edinburgh University; formerly Editor of the "North British Review."

William Congreve. GOSSE, EDMUND, LL.D., Author and Critic, Librarian to the House of Lords; Author of "Life of Congreve," etc.

SHORTER, CLEMENT K., Editor of "The Sphere," London, founder and formerly Editor of "The Sketch."

HODGKIN, THOMAS, D.C.L., Litt.D., Historian; Author of "Italy and Her Invaders," "Life of Charles the Great," "Life of George Fox," and "Political History of England."

Leibniz,
Erigena,
Scholasticism.

Junius.

Mirabeau.

Herbert of
Cherbury.

George Meredith.

LATTA, ROBERT, M.A., D.Phil., Professor of Logic and Rhetoric,
University of Glasgow.

RAE, W. FRASER, Author of "Notes on England, from the French
of M. Taine."

ROSE, JOHN H., M.A., Litt.D., Historical Writer, University
Extension Lecturer, Editor of the Victorian Era Series, and
Author of "The Development of the European Nations,
1870-1900," etc.

SORLEY, WILLIAM R., M.A., LL.D., Litt.D., Knightbridge Pro-
fessor of Moral Philosophy, Cambridge University; Author
of "Ethics of Naturalism," etc.

ERSKINE, JOHN, A.M., Ph.D., Adjunct Professor of English,
Columbia University.

BIOLOGY, BOTANY, AND NATURE STUDY.

THOMSON, JOHN ARTHUR, M.A., Professor of Natural History,
Aberdeen University; formerly Lecturer on Zoology and
Biology, School of Medicine, Edinburgh.

INGERSOLL, ERNEST, Naturalist, Editor, and formerly Lecturer
on Zoology, University of Chicago.

SCHERREN, HENRY, F.Z.S., late Editor of the Encyclopædic Dic-
tionary; Specialist in Zoology and Botany.

BRISTOL, CHARLES L., B.S., Ph.D., Professor of Biology, New
York University.

FULTON, T. WEMYSS, M.D., F.R.S.E., Scientific Superintendent,
Fishery Board for Scotland.

HOWARD, LELAND O., M.S., Ph.D., Chief of Bureau of Entomol-
ogy, U. S. Department of Agriculture; Curator Department
of Insects, U. S. National Museum.

JORDAN, DAVID STARR, M.D., Ph.D., LL.D., President of Leland
Stanford, Jr., University; Member U. S. Seal Commission.
NEWBIGIN, MARION I., D.Sc., Lecturer on Zoology, College of
Medicine for Women, Edinburgh; Editor of the "Scottish
Geographical Magazine."

CHEMISTRY.

COBLENTZ, VIRGIL, Ph.D., Phar.M., A.M., F.C.S., Professor of
Chemistry, Department of Pharmacy, Columbia University;
Member of U. S. Pharmacopoeia Revision Committee;
Author of "Volumetric Analysis," "The Newer Remedies,"

etc.

Education,
Universities, etc.

Education,

Educational Systems, Infant

Education, etc.

Industrial

Education,

Manual Training.

Medical Practitioner.

MARSHALL, HUGH, D.Sc., F.R.S., F.R.S.E., Lecturer on Chemistry, Mineralogy, Crystallography, Edinburgh University. CUNDALL, J. TUDOR, B.Sc., Consulting Chemist; Science Teacher at Edinburgh Academy.

LANGWORTHY, CHARLES F., Ph.D., Associate Editor of the "Ex-
periment Station Record," U. S. Department of Agriculture,
and Chief of Nutrition Investigation.

FERGUSON, JOHN, LL.D., F.S.A., Professor of Chemistry,
Glasgow University; Author of "Papers on the History of
Chemistry."

BASKERVILLE, CHARLES, Ph.D., Professor of Chemistry, College
of the City of New York; Author of "Radium and Its Ap-
plication in Medicine."

WILEY, HARVEY W., A.M., M.D., formerly Chief Chemist, U. S.
Department of Agriculture.

EDUCATION.

MONROE, PAUL, Ph.D., Professor of Education, Teachers College, Columbia University.

ADAMS, JOHN, M.A., B.Sc., F.C.P., Professor of Education, University of London; Lecturer on Education, Glasgow University.

RICHARDS, CHARLES R., Director of Cooper Institute, New York, and former Director of Manual Training, Columbia University.

Medical Education, FLEXNER, ABRAHAM, Author of Carnegie Foundation Report, "Medical Education in the United States and Canada."

American Colleges and Universities.

American
Museums,

Scientifle Societies.

National
Education

Association.

Library of
Congress.

Smithsonian
Institution.

Carnegie Institution of Washington.

ARROWSMITH, ROBERT, Ph.D., former Professor of Latin,
Teachers College, Columbia University.

BENJAMIN, MARCUS, Ph.D., Editor, U. S. National Museum.

SHEPARD, IRWIN, Secretary of the National Education Association.

PUTNAM, HERBERT, A.B., LL.D., Librarian of Congress.

WALCOTT, CHARLES D., Secretary of the Smithsonian Institution,
Washington, D. C.

GILBERT, WALTER M., Assistant Secretary of the Carnegie In-
stitution.

Carnegie
Foundation,

Carnegie
Hero Funds.

Foreign Museums.

Oxford.

University
Extension.

Private Schools.

Technical
Education.

BOWMAN, JOHN G., Secretary Carnegie Foundation.

BATHER, FRANCIS A., M.A., D.Sc., F.G.S., Assistant Keeper,
Department of Geology, British Museum.

WELLS, JOSEPH, M.A., Fellow and Tutor, Oxford University;
Author of a "History of Rome."

MILLER, FRANK J., Ph.D., Associate Professor of Latin and Dean
of Affiliations, University of Chicago.

SEWALL, M. W., formerly Principal of the Girls' Classical School,
Indianapolis, Ind.

BURR, WILLIAM H., C.E., Professor of Civil Engineering, Co-
lumbia University; formerly Member of the Panama Canal
Commission.

Electricity,
Electrical

Engineering.

Wireless
Telephony.

Wireless
Telegraphy.

Telephone and

Street Railways.

Telegraphy.

Mono-Railways.

ELECTRICITY.

KENNELLY, ARTHUR E., D.Sc., F.R.A.S., Professor of Electrical
Engineering, Harvard University.

SEVER, GEORGE F., formerly Dean of the Faculty of Electrical
Engineering, Columbia University.

BARKER, HARRY, Associate Editor of "Engineering News," New
York.

BAILY, FRANCIS G., Professor of Physics, Heriot-Watt College,
Edinburgh.

HAY, ALFRED, D.Sc., Head of Physics and Electrical Engineering
Department, Hackney Technical Institute, London.

MACDONALD, CHARLES, Lecturer in Leith Technical College.
DE FOREST, LEE, Ph.D., Inventor of De Forest System of Wire-
less Telegraphy.

COLLINS, A. FREDERICK, Author of "Manual of Wireless Teleg-
raphy."

BROWNE, WILLIAM HAND, JR., Technical Editor of "Electrical
Review."

MAVER, WILLIAM, JR., Electrical Engineer and Writer on Telegraph Practice.

BOSTWICK, ARTHUR E., Ph.D., Director of Public Libraries, St.
Louis, Mo.; writer on scientific topics.

ENGINEERING, CONSTRUCTION, MECHANICS, AND
MACHINERY.

Engineering
Articles.

Civil Engineering.

Mechanical Engineering.

Applied Science and Engineering.

Hydrokinetics,
Hydrostatics.

Magnetism,
Terrestrial.

Motor Cars,
Motor Boats,
Motorcycles.

Locomotives.

Railroads.

Steam Engines,
Steam Turbines.

Hydraulic Machinery.

Bridges, etc.

Governors,

Thermodynamics,

Valves, etc.

Engines, Boilers, etc.

BAKER, MOSES N., Ph.B., Editor of "Engineering News," New
York.

BURR, WILLIAM H., C.E., Professor of Civil Engineering, Colum-
bia University; formerly Member of Panama Canal Com-
mission.

SCHMITT, FRED. E., JR., Associate Editor of "Engineering News,"
New York.

MORRISON, CHARLES E., Instructor in Civil Engineering, Colum-
bia University.

ALLANSON-WINN, ROWLAND G., B.A., M. Inst. of C. E. of Ire-
land, Author of "Foreshore Protection," etc.

TROWBRIDGE, AMASA, formerly Adjunct Professor in Columbia
University.

GIBSON, GEORGE H., formerly Associate Editor of "Engineering
News."

WADE, HERBERT T., Author (with Professor W. Hallock) of "Out-
lines of the Evolution of Weights and Measures and the
Metric System," etc.

PEDDIE, W. D., Professor of Physics, University College, Dundee;
formerly Assistant Professor of Natural Philosophy, Edin-
burgh University.

BAUER, LOUIS A., Ph.D., A.M. (Berlin), Director Department of
Terrestrial Magnetism, Carnegie Institution of Washington.
POTTER, ROSSITER, Associate Editor of "Engineering News,"
New York City.

GORDON, REGINALD, Editor of "The Master Mechanics' Asso-
ciation Locomotive Dictionary."

HITT, RODNEY D., Associate Editor "Electric Railway Journal."

KENT, WILLIAM, A.M., M.E., formerly Dean of College of Ap-
plied Science, Syracuse University.

BLAINE, R. G., M.E., Lecturer in the Technical College, London.
FIDLER, PROF. T. CLAXTON, M. Inst. of C. E., Professor of Engi-
neering and Drawing, University of St. Andrews, Scotland.
FOSTER, E. D., Lecturer, Municipal School of Science, Brighton.
STANFIELD, RICHARD, A.R.S.M., M. Inst. of C. E., Professor of
Engineering at Heriot-Watt College, Edinburgh.