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LITTELLSLIVINGAGE

FOREIGNPERIODICALLITERATURE

UNEQUALLEDIN QUALITY AND QUANTITY

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WORLD'S GREATEST INTELLECTS

CONTRIBUTE TO MAKE THIS PERIODICAL

Encyclopedic in Scope, Character, Completeness, Comprehensiveness

Every intelligent reader will find in
THE LIVING AGE

Food to Nourish, Stimulate, and Inspire Thought.

The ablest and brightest men and women

of the world have read and commended it
during more than half a century.

1

"Exhaustive Reviews of recent publications, the latest results of Scientific Research, Biographical Sketches of eminent characters, Travel, Exploration, Literary Criticism, and every phase of Culture and Progress in Europe Fiction and Choice Poetry-ali these make up THE LIVING AGE."- Evening Bulletin, Phila.

A Weekly Magazine, it gives nore than Three and a Quarter Thousand double column octavo pages of reading-matter yearly, forming four large volumes.

The Subscription REDUCED from $8.00 to $6.00 a year.

Price

This makes The Living Age absolutely the cheapest magazine published.

CLUB RATES. For $9.00 THE LIVING AGE and any one of the American $4.00 monthlies; or for $8.00 THE LIVING AGE and any one of the $3 00 monthlies, will be sent for a year, post-paid. Rates for clubbing THE LIVING AGE with other periodicals will be sent on application.

Address,

LITTELL & CO., P. O. Box 5206, Boston.

"For $9.00 LITTELL'S LIVING AGE and THE AMERICAN NATURALIST, will be sent, each one year, postpaid."

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PROFS. E. D. COPE, Philadelphia, AND J. S. KINGSLEY, Tufts College, College Hill, Mass.

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HE BEARING OF THE ORIGIN AND Differenti-
ATION OF THE SEX CELLS IN CYMATOGASTER
ON THE IDEA OF THE CONTINUITY OF THE
GERM PLASM.
Carl H. Eigenmann. 265
HE HISTORY AND PRINCIPLES OF GEOLOGY AND
ITS AIM. (Continued.) J. C. Hartzell, Jr., 271
FE BEFORE FOSSILS. (Continued.)

Charles Morris, 279
RDS OF NEW GUINEA (FLY CATCHERS AND
OTHERS.) (Continued.) G. S. Mead. . . 285
ECENT LITERATURE-Murray's Introduction to
the Study of Sea Weads-Taxonomy of
the Crinoids. .

ECENT BOOKS AND PAMPHLETS.
ENERAL NOTES.

Petrography-Examples of Rock Differenti-
on-Petrographical Notes.

290

295

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313

318

323

297

333

Embryology -The Effect of Lithiumchloride upon the development of the Frog and Toad egg (R. fusca and Bufo vulgaris.).

336

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Geology and Paleontology.-The Paleozoic Repian Order Cotylosauria. (Illustrated.)--The get Group-The Geological Structure of orida-Notes on the fossil Mammalia of rope Pt. II.—The Glaciers of Greenland. . 301 Botany.-New Species of Fungi-Alaskan tany-Aquatic Plants of Iowa-Another ementary Botany-Botany in the United

Psychology.-Professor Baldwin on Preformation and Epigenesis-Psychologie data wanted. 342 PROCEEDINGS OF SCIENTIFIC SOCIETIES.

PHILADELPHIA, U. S. A.

346

THE EDWARDS & DOCKER CO.,

518 AND 520 MINOR STREET.

tered at the Philadelphia Post Office as second-class matter.

The Subscription REDUCED from $8.00 to $6.00 a year.

Price

TTELL'S LIVING
FOREIGN AERATURE

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WORLD'S GREATEST INTELLECTS

CONTRIBUTE TO MAKE THIS PERIODICAL

Encyclopedic in Scope, Character, Completeness, Comprehensiveness

Every intelligent reader will find in

THE LIVING AGE

Food to Nourish, Stimulate, and Inspire Thought.

The ablest and brightest men and women

of the world have read and commended it

during more than half a century.

"Exhaustive Reviews of recent publications, the latest results of Scientific Research, Biographical Sketches of eminent characters, Travel, Exploration, Literary Criticism, and every phase of Culture and Progress in Europe Fiction and Choice Poetry - all these make up THE LIVING AGE."- Evening Bulletin, Phila.

A Weekly Magazine, it gives more than Three and a Quarter Thousand double column octavo pages of reading-matter yearly, forming four large volumes.

The Subscription REDUCED from $8.00 to $6.00 a year.

Price

This makes The Living Age absolutely the cheapest magazine published.

CLUB RATES. For $9.00 THE LIVING AGE and any one of the American $4.00 monthlies; or for $8.00
THE LIVING AGE and any one of the $3 00 monthlies, will be sent for a year, post-paid.
Rates for clubbing THE LIVING AGE with other periodicals will be sent on application.

Address,

LITTELL & CO., P. O. Box 5206, Boston.

"For $9.00 LITTELL'S LIVING AGE and THE AMERICAN NATURALIST, will be sent, each one year, postpaid."

E

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PROFS. E. D. COPE, Philadelphia, AND J. S. KINGSLEY, Tufts College, College Hill, Mass.

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E PROBABLE INFLUENCE OF DISTURBED NUTRITION ON THE EVOLUTION OF THE VEGETATIVE PHASE OF THE SPOROPHYTE.

PAGE

Geo. F. Atkinson. 349 OGRESS IN AMERICAN ORNITHOLOGY. 1886-1895. R. W. Shufeldt, M. D. 357 E PATH OF THE WATER CURRENT IN CUCUMBER PLANTS. (To be continued).

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379

Erwin F. Smith. 372
THE MISSISSIPPI VALLEY UNIONIDE FOUND IN
THE ST. LAWRENCE AND ATLANTIC DRAINAGE
AREAS. Charles T. Simpson. .
ITOR'S TABLE.-The Destruction of the Seal
Herd-Credit for Work--The Field Mu-
seum-The Filson Club-The New Com-
missioner of Fisheries.

CENT LITERATURE - Geological Survey of
New Jersey-Annual Report, Vol. VI,
Geological Survey of Canada-Elementary
Physical Geography-Guide Zoologique
-Marshall and Hurst's Practical Zoology
-Elementary Lessons in Zoology-Chats
about British Birds-Check List of North
American Birds.

CENT BOOKS AND PAMPHLETS.
NERAL NOTES.

Petrography.-Ancient Volcanics in Michigan
neisses of Essex Co. N. Y.-Volcanic Rocks
Maine-Spotted Quartzites, S. Dakota-The

385

387

390

Gneisses and 'Leopard Rock' of Ontarto-Petrographical Notes.

PAGE

393

Geology and Paleontology.-Geology of the French Congo-Geology of the Nile ValleyThe Antarctic Continent-Two Epochs in Vegetable Paleontology-The Appalachian Folds -The Ancestry of the Testudinala-The Extent of the Triassic Ocean-Geological News. 396 Botany. The Conifers of the Pacific SlopeStill another High School Botany-Popular Botany-Notes of Botanical Papers.

Vegetable Physiology-Change in Structure of Plants due to Feeble Light-A Graft Hybrid -Ustilaginoidea.

Zoology-Respiration of Trilobites-A Criticism of Mr. Cook's Note on the Sclerites of Spirobolus-The Sight of Insects-Dr. Baur on my Drawings of the Skull of Conolophus subcristatus Gray-Zoological News.

Entomology-A New Diplopod Fauna in

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PHILADELPHIA, U. S. A.

402

405

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438

THE EDWARDS & DOCKER CO.,

518 AND 520 MINOR STREET.

tered at the Philadelphia Post Office as second-class matter.

The Subscription REDUCED from $8.00 to $6.00 a year.

Price

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Every intelligent reader will find in
THE LIVING AGE

Food to Nourish, Stimulate, and Inspire Thought.

The ablest and brightest men and women

of the world have read and commended it
during more than half a century.

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"Exhaustive Reviews of recent publications, the latest results of Scientific Research, Biographical Sketches of eminent characters, Travel, Exploration, Literary Criticism, and every phase of Culture and Progress in Europe Fiction and Choice Poetry - all these make up THE LIVING AGE."- Evening Bulletin, Phila.

A Weekly Magazine, it gives more than Three and a Quarter Thousand double column octavo pages of reading-matter yearly, forming four large volumes.

The Subscription REDUCED from $8.00 to $6.00 a year.

Price

.

This makes The Living Age absolutely the cheapest magazine published.

CLUB RATES. For $9.00 THE LIVING AGE and any one of the American $4.00 monthlies; or for $8.00 THE LIVING AGE and any one of the $3.00 monthlies, will be sent for a year, post-paid. Rates for clubbing THE LIVING AGE with other periodicals will be sent on application.

Address,

LITTELL & CO., P. O. Box 5206, Boston.

"For $9.00 LITTELL'S LIVING AGE and THE AMERICAN NATURALIST, will be sent, each one year, postpaid."

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