INDEX

N. B.—The most important references are in heavy-faced type; technical names of genera and species are italicized, though most of the specific names are omitted as unnecessary. Extinct groups are indicated by a dagger (†).

The following pages contain advertisements of books by the same author or on kindred subjects.

THE MACMILLAN COMPANY
Publishers 64-66 Fifth Avenue New York

BY THE SAME AUTHOR

An Introduction to Geology

By WILLIAM B. SCOTT, Ph.D., LL.D.
Blair Professor of Geology and Palæontology in Princeton University

New York, 1907 New Edition, completely revised, 1907 Latest Reprint, 1909

Illustrated 12mo $2.60

Intended to serve as an introduction to the science of Geology, both for students who desire to pursue the subject exhaustively and also for those who wish merely to obtain an outline of the methods and principal results of the science. To the future specialist such a preliminary survey of the whole field will afford the necessary orientation. To the non-specialist the graphic presentation of the outlines of the subject cannot fail to prove both interesting and informing. The book aims to cultivate a proper scientific attitude by training the student to carefully distinguish between fact and inference and between observation and hypothesis. He is taught to weigh his evidences carefully, and while balancing probabilities suspend judgment where the data for decision are insufficient.

The new edition incorporates the results of all the important advances made in geological knowledge in recent years. The number of illustrations has been greatly increased, thus adding to the admirable clearness of the text.

Guide to the Study of Animal Ecology

By CHARLES C. ADAMS
Associate in Animal Ecology in the University of Illinois

Cloth, 12mo 183 pp. $1.25 net

This work is the outgrowth of the author’s efforts during the last ten years to find some consistent and satisfactory working plan for handling the almost bewildering number of facts of ecological significance which have been accumulating in the literature of zoölogy, biology, and the allied sciences. An ecological point of view is described more fully than other subjects, so that the student may see the need of familiarity with those tests or criteria by means of which he may be able to determine for himself ecological relations and the validity of ecological studies. The other phases are treated less fully in the discussions and with more detail bibliographically, so that this may be a useful source-book. In fact, the very extensive and up-to-date bibliography is one of the important features of the entire book.

The Age of Mammals in
Europe, Asia, and North America

By HENRY FAIRFIELD OSBORN
A.B., SC.D. PRINCETON, HON. LL.D. TRINITY, PRINCETON, COLUMBIA, HON. D.SC.
CAMBRIDGE UNIVERSITY, HON. PH.D. UNIVERSITY OF CHRISTIANIA,
PRESIDENT AMERICAN MUSEUM OF NATURAL HISTORY,
PRESIDENT NEW YORK ZOÖLOGICAL SOCIETY

ILLUSTRATED BY 232 HALF-TONE AND OTHER FIGURES,
INCLUDING NUMEROUS MAPS, GEOLOGICAL SECTIONS,
FIELD VIEWS, AND REPRODUCTIONS FROM PHOTOGRAPHS
OF MOUNTED FOSSIL SKELETONS AND OF THE
FAMOUS RESTORATIONS BY CHARLES R. KNIGHT.

Royal 8vo $4.50 net Carriage extra

“The Age of Mammals” is not written for the palæontologist only. No zoölogist interested in mammals, birds, fishes, or reptiles can fail to find it of value. The geologist finds here the clearest exposition that has been given of the succession of geological events in the mammal-bearing continental formations of the Tertiary and Quaternary of the Western States. The anthropologist finds in the closing chapter on the Pleistocene a key to most of the problems which confront him as to the time of man’s first appearance. The botanist may refer to it for the succession and evolution of flora.

To the general reader it offers the first connected account of the history of life on the earth during the later geological epochs, a record embodying the very latest results of the active research going on in this direction at the present time. In so far as science has succeeded in piecing together the fragmentary evidence of the rocks, this volume contains glimpses into the remote past of the continental outlines, the climate, vegetation, and animal life of the epochs preceding the “Age of Man.” The text is supplemented by a very original and suggestive series of illustrations, notable among which are numerous half-tone reproductions from the famous restorations of extinct mammals by Charles R. Knight, many of which are published here for the first time. Moreover, there is appended to the volume an invaluable Classification of the Mammalia, which gives not only the systematic position but also the geologic and geographic distribution and the popular names of all the important genera of mammals, both living and fossil.

Comments on The Age of Mammals

“Students of palæontology have awaited impatiently the past few years a promised work on extinct mammals by Professor Osborn. In his ‘Age of Mammals,’ expectations have been more than realized.”—S. W. Williston, in Science, Feb. 17, 1911.

“Dr. H. F. Osborn is a great palæontologist; in this book he has gathered together the work of a life-time, and that work, besides being original and constructive, is also critical and selective. The result is a great book.” “While it is an incomparable text-book, a work of reference to the student, and, no doubt a fruitful field for the controversialist of the future, it is a work which can be read with interest and satisfaction by the ‘genial omnivore,’ as Huxley called him, the general reader.”—The Field, Jan. 7, 1911.

“It is in the best sense a source book, for it gives at first hand, from the original material, the ideas of an acknowledged master in mammalian palæontology.” “It has the clarity and directness of style so welcome, and rare, in such a book.”—E. C. Case, in Bulletin American Geographical Society, July, 1911.

“A book of the utmost value to the student and teacher of mammalian life and likewise to the serious reader.”—American Journal of Science, Feb., 1911.

“M. Osborn ... devait s’attacher a nous présenter le tableau aussi complet et aussi fidèle que possible des faunes de Mammifères fossiles qui se sont succédé dans l’hémisphère Nord pendant l’ère tertiaire. Et j’ai plaisir à dire tout de suite qu’il y a parfaitement réussi.”—M. Boule, in Mouvement Scientifique, 1911, p. 569.

“Professor Osborn has produced a book which will appeal to the learned specialist and to the thoughtful general reader as well.” “The work is well adapted to school and college use, and is abundantly illustrated.”—Education, Boston, Jan., 1911.

“One of the most notable books on evolution since the appearance of Darwin’s ‘Origin of Species.’”—Forest and Stream, Dec. 10, 1910.

“Nejlepší současný palæontolog americký, Henry Fairfield Osborn, vydal nedàvno s titulem tuto citovaným znamenitě psanou a pěkně vypravenou knihu o ‘věku ssavců.’”—F. Bayer in Věstníku Ceské Akademie císaře Františka Josefa pro vědy, slovenost a umení.—Ročník XX, 1911.

“Written with clearness and vivacity, most admirably illustrated, especially by the ‘restorations’ of Mr. Knight, and illuminated by maps, Professor Osborn builds, page after page, his story-mosaic.... The reader will soon discover that he is a brilliant generalizer, possessed of material gathered from all around the globe, fructifying his knowledge by the exercise of a constructive imagination, and expressing his facts and ideas in a literary style, clear, vigorous, and entertaining.”—The Literary Digest, Feb. 4, 1911.

The Cambridge Natural History

EDITED BY

S. F. HARMER, Sc.D., F.R.S.
Fellow of King’s College, Cambridge; formerly Superintendent of the University Museum of Zoölogy; Keeper of the Department of Zoölogy in the British Museum (Natural History)

AND

A. E. SHIPLEY, M.A., Hon. Sc.D., Princeton, F.R.S.
Master and Fellow of Christ’s College, Cambridge; formerly Reader in Zoölogy in the University; Chairman of Council of Marine Biological Association

In Ten Volumes Fully Illustrated Medium 8vo Gilt Tops Each Volume, $4.75 net

CONTENTS

Vol.I.Protozoa, by M. Hartog; Porifera, by Igerna Sollas; Coelenterata and Ctenophora, by S. J. Hickson; Echinodermata, by E. W. MacBride.
Vol.II.Flatworms and Mesozoa, by F. W. Gamble; Nemertines, by L. Sheldon; Threadworms and Sagitta, by A. E. Shipley; Rotifers, by M. Hartog; Polychaet Worms, by W. B. Benham; Earthworms and Leeches, by F. E. Beddard; Gephyrea, etc., by A. E. Shipley; Polyzoa, by S. F. Harmer.
Vol.III.Molluscs, by H. A. Cooke; Recent Brachiopods, by A. E. Shipley; Fossil Brachiopods, by F. R. C. Reed.
Vol.IV.Spiders, Mites, Scorpions, etc., by C. Warburton; Trilobites, etc., by M. Laurie; Pycnogonids, by D’Arcy W. Thompson; Lingulatulidæ and Tardigrada, by A. E. Shipley; Crustacea, by Geoffrey Smith.
Vol.V.Peripatus, by A. Sedgwick; Myriopods, by F. G. Sinclair; Insects, Part I, by D. Sharp.
Vol.VI.Insects, Part II, by D. Sharp.
Vol.VII.Hemichordata, by S. F. Harmer; Ascidians and Amphioxus, by W. A. Herdman; Fishes (exclusive of systematic account of Teleostei), by T. W. Bridge; Fishes (systematic account of Peleostei), by G. A. Boulanger.
Vol.VIII.Amphibia and Reptiles, by Hans Gadow.
Vol.IX.Birds, by A. H. Evans.
Vol.X.Mammalia, by F. E. Beddard.

WHAT THE CRITICS SAY OF
THE
CAMBRIDGE NATURAL HISTORY

New York Evening Post.

Its editors may well be congratulated upon the completion of such an undertaking, whose vastness and difficulty can be adequately appreciated only by the skilled zoölogist. The student of biology who turns to this volume (Vol. iv) will not be disappointed in its value as a serviceable handbook. It is pleasant to observe how numerous, clear, and satisfactory are the drawings that illustrate the text.

American Journal of Science.

The most convenient and generally useful work of reference on the subject that has appeared in the English language in recent years.

Book Review Digest.

The zealous student, anxious to bring his knowledge up to date, will find here a compendium on which he can rely.

Field.

The Cambridge Natural History series of volumes is one of very great value to all students of biological science.

Times.

There are very many, not only among educated people who take an interest in science, but even among specialists, who will welcome a work of reasonable compass and handy form containing a trustworthy treatment of the various departments of Natural History by men who are familiar with, and competent to deal with, the latest results of scientific research. Altogether, to judge from this first volume, the Cambridge Natural History promises to fulfil all the expectations that its prospectus holds out.

Academy.

The editors have aimed very high, and they have succeeded.... Well conceived, carefully coördinated, and executed with the greatest detail and completeness, the Cambridge Natural History is certain to rank high amongst those gigantic scientific works to which, within the last half-century or so, the labours of so many experts, each without hope of more glory than falls to a mere assistant, have contributed.

Athenæum.

The series certainly ought not to be restricted in its circulation to lecturers and students only; and, if the forthcoming volumes reach the standard of the one here under notice, the success of the enterprise should be assured.

Science Gossip.

Every library, school, and college in the country should possess this work, which is of the highest educational value.

Daily News in a Review of Vol. X.

A volume which, for the interest of its contents and for its style and method of treatment, is not only worthy of its predecessors, but may be regarded as one of the most successful of a brilliant series.

A GREAT EXPLORER’S STORY

My Life With the Eskimo

By VILHJÁLMUR STEFÁNSSON

ILLUSTRATED WITH HALF-TONE REPRODUCTIONS OF
PHOTOGRAPHS TAKEN BY THE AUTHOR AND OTHERS

Decorated cloth, 8vo

A fascinating book of description and adventure has been written by the famous traveler and explorer, who has passed years of his life within the Arctic Circle. Mr. Stefánsson has had a vast amount of material from which to draw and he has made his selection wisely. He has lived with the Eskimo for long periods; he knows their language; he has subsisted on their food; he has heard their legends; he has seen them in their daily lives as have few explorers. Consequently his remarks about this primitive and matter-of-fact people are shrewd, true, and frequently amusing. The experiences and tales which he recounts, mirroring the hardships and the inspirations of life in a fearful but wonderful country, compose a work quite the most absorbing on it that has ever been published.