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.

Date:
1896
Catalogue details

Licence: Public Domain Mark

Credit: 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. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

    11/370
    TABLE OF CONTENTS Introduction. TAGE . ix CHAPTER I The Problem: The Mode of its Solution . . . 1 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 . <j2 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: Magosplisera, volvox.—Embryonic development.—Turbellaria: Appearance of a body wall, of ganglion, and nerve-cords. CHAPTER III Worms to Vertebrates: Skeleton and Head . 55 Worms and the development of organs.—Mollusks: The external protec- tive skeleton leads to degeneration or stagnation. Annelids and arthio- pods: The external locomotive skeleton leads to temporary rapid advance, but fails of the goal.—Its disadvantages.—Vertebrates: The internal loco- motive skeleton leads to backbone and brain.—Reasons for their dominance —The primitive vertebrate.