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Title: The Whence and the Whither of Man

Author: John Mason Tyler

Release Date: January 29, 2005 [eBook #14834]

Language: English

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THE WHENCE AND THE WHITHER OF MAN

A Brief History of His Origin and Development through Conformity
to Environment

Being the Morse Lectures of 1895

by

JOHN M. TYLER
Professor of Biology, Amherst College

New York
Charles Scribner's Sons

1896

Morse Lectures

1893--THE PLACE OF CHRIST IN
MODERN THEOLOGY. By Rev. A.M.
Fairbairn, D.D. 8vo, $2.50

1894--THE RELIGIONS OF JAPAN. By Rev.
William Elliot Griffis, D.D.
12mo, $2.00.

1895--THE WHENCE AND THE WHITHER OF
MAN. By Professor John M. Tyler.
12mo, $1.75.

TABLE OF CONTENTS

INTRODUCTION

CHAPTER I

THE PROBLEM: THE MODE OF ITS SOLUTION

The question.--The two theories of man's origin.--The argument
purely historical.--Means of tracing man's ancestry and
history.--Classification.--Ontogenesis and Phylogenesis.

CHAPTER II

PROTOZOA TO WORMS: CELLS, TISSUES, AND ORGANS

Amoeba: Its anatomy and physiology.--Development of the
cell.--Hydra: The development of digestive and reproductive organs,
and of tissues.--Forms intermediate between amoeba and hydra:
Magosphaera, volvox.--Embryonic development.--Turbellaria: Appearance
of a body wall, of ganglion, and nerve-cords.

CHAPTER III

WORMS TO VERTEBRATES: SKELETON AND HEAD

Worms and the development of organs.--Mollusks: The external
protective skeleton leads to degeneration or stagnation.--Anne