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By EDWARD HENRY KRAUS, Ph.D., Professor of Crystallography and Mineralogy, University of Michigan, and WALTER FRED HUNT, Ph.D., Associate Professor of Mineralogy and Petrography, University of Michigan.

An Introduction to the Study of Minerals and Crystals.
MCGRAW-HILL BOOK COMPANY
New York City

239 West 39th Street,

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Georgetown University

SCHOOL OF MEDICINE AND

DENTAL DEPARTMENT

The Sixty-fourth Session began in September and con tinues eight and one-half months. Six-Year Collegiate and Medi. cal Course leading to degrees B.S. and M.D. Practical laboratory work under special instructors, in Anatomy, Physiology, Chem istry, Histology, Pathology and Bacteriology. Ample facilities for clinical experience and practical work in hospitals of city and in the University Hospital, containing in all over 3,000 beds. For particulars address

GEORGE M. KOBER, M. D.
Dean School of Medicine, 1819 Q Street
SHIRLEY W. BOWLES, D.D.S.
Dean Dental Department, 1616 I Street, N. W.
Washington, D. C

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(British Made)

STUDENTS' MICROSCOPES

The "Praxis" Stand is the Student's model par excellence. Made throughout with the same ac

curacy

as

and finish

on Watson's highest priced Stands.

A few special points are:- -Standardization so that additional

movements

may be fitted as required. Lever fine adjustment. Constructed of two solid castings and indestructible. All parts are slotted and sprung to compen sate for wear.

Catalogue of Microscopes and accessories for
all purposes gratis on request from
W. WATSON & SONS, Ltd.
Established 1837

313, High Holborn, London, England

Naturalists' Supplies

We carry stock for prompt delivery

1. Collecting Utensils.

II. Breeding Apparatus and Cages for Living Animals.
III. Preparing and Preserving Utensils.

IV. Cabinets, Insect Cases and Lining Material.

V.

VI.

Magnifiers, Microscopes and Accessories.
Botanists' Supplies.

VII. Explorers' and Collectors' Camp Outfits.
Miscellaneous Naturalists' Supplies.

VIII.

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K-S Museum Cabinets of Glass and Metal

New Illustrated Biological Catalog will be sent free of charge upon application

THE KNY-SCHEERER CORPORATION

Department of Natural Science

G. Lagai, Ph.D.

404-410 WEST 27TH STREET,

NEW YORK CITY, N. Y.

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Our Subscribers Include:

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J

UST as America leads the world in recon-
struction,wealth,invention, manufacture, so
The AMERICANA establishes a new lead-
ership over all reference works.

The revolutions in thought and progress, brought
about by the War, made all encyclopedias
obsolete. A restatement of the World's knowledge
thus became imperative. The AMERICANA
gives a wide view of the world as it is today
not as it was ten years ago.

COPYRIGHTED

1920

ENCYCLOPEDIA AMERICANA

CORPORATION

27 WILLIAM ST., NEW YORK PEOPLE'S GAS BLDG., CHICAGO
Gentlemen:

Please send descriptive literature - AMERICANA

NAME
ADDRESS.

The Boston
Public

Library says:

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OCT 27 1922

LIBRARY

THE SCIENTIFIC

MONTHLY

NOVEMBER, 1922

SOCIAL LIFE AMONG THE INSECTS1

By Professor WILLIAM MORTON WHEELER
BUSSEY INSTITUTION, HARVARD UNIVERSITY

LECTURE IV-ANTS, THEIR DEVELOPMENT, CASTES, NESTING AND FEEDING HABITS

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N one occasion several years ago when I was about to lecture on ants in Brooklyn, a gentleman introduced me to the audience by quoting the sixth to eighth verses of the sixth chapter of Proverbs, and then proceeded in utter seriousness to give an intimate account of their author. He said that Solomon was the greatest biologist the Hebrews had produced, that he had several large and completely equipped laboratories in which he busied himself throughout his reign with intricate researches on ant behavior and that the 700 wives and 300 concubines mentioned in the Bible were really devoted graduate students, who collaborated with the king in his myrmecological investigations. The gentleman deplored the fact that the thousand and one monographs embodying their researches had been lost, and concluded by saying that he was delighted to introduce one who could supply the missing information. As he had consumed just forty-three minutes with his account of Solomon and his collaboratrices, I had to confess my inability to "deliver the goods" in the remaining seventeen. From what recondite sources of biblical exegesis the Brooklyn gentleman drew his information I have never been able to ascertain, but I am sure that Solomon's few myrmecological comments, which have come down to us from about 970 B. C., are very accurate-far more accurate than that story of Herodotus, written some 500 years later, of the gold-digging ants of India, which were as large as leopards, and whose hides were seen by Nearchus in the camp of Alexander the Great, and whose horns were mentioned by Pliny as hanging, even in his time, in the temple of Hercules at Erythræ.

1 Lowell Lectures.

Vol. XV.-25.

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