PROBLEM I. THE NATURE OF LIFE. |
CHAPTER I. |
| PAGE |
The Problem stated | 3 |
(The Position of Biology) | 4 |
(Organisms) | 8 |
(Vital Force) | 14 |
(Vital Force controlling Physical and Chemical Forces) | 16 |
CHAPTER II. |
Definitions of Life | 24 |
CHAPTER III. |
Organism, Organization, and Organic Substance | 37 |
(Organism and Medium) | 45 |
(The Hypothesis of Germinal Matter) | 57 |
(Organisms and Machines) | 67 |
CHAPTER IV. |
The Properties and Functions | 70 |
(Does the Function determine the Organ?) | 78 |
CHAPTER V. |
Evolution | 89 |
(Natural Selection and Organic Affinity) | 115 |
(Recapitulation) | 152 |
PROBLEM II. THE NERVOUS MECHANISM. |
CHAPTER I. |
Survey of the System, | 157 |
(The Early Forms of Nerve-Centres), | 168 |
(The Peripheral System), | 171 |
(Ganglia and Centres), | 172 |
CHAPTER II. |
The Functional Relations of the Nervous System, | 176 |
CHAPTER III. |
Neurility, | 189 |
(Origins of Nerve-Force), | 201 |
(The Hypothesis of Specific Energies), | 207 |
CHAPTER IV. |
Sensibility, | 211 |
CHAPTER V. |
Action without Nerve-Centres, | 227 |
CHAPTER VI. |
What is taught by Embryology?, | 237 |
CHAPTER VII. |
The Elementary Structure of the Nervous System, | 251 |
(Difficulties of the Investigation), | 252 |
(The Nerve-Cell), | 258 |
(The Nerves), | <
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