CodalSearch this book — or all of Codal…⌘K
Projects
Sign inStart a book
nydus/Contributions to the Theory of Natural SelectionPublic

This volume collects essays written by Alfred Russel Wallace regarding his independent discovery and development of the theory of natural selection. The author provides corrected and expanded versions of his previous scientific writings to demonstrate the scope and application of his findings.

Page 297 of 388
Table of Contents

VIII. CREATION BY LAW.

PROVED FACTSNECESSARY CONSEQUENCES (afterwards taken as Proved Facts).
Struggle for Existence.Survival of the Fittest , or Natural Selection; meaning simply, that on the whole those die who are least fitted to maintain their existence; (“Origin of Species,” chap. IV.)
Heredity With Variation , or general likeness with individual differences of parents and offspring, pp. 266, 287-291, 308; (“Origin of Species,” chap. I., II., V.)
Survival of the Fittest.Changes of Organic Forms , to keep them in harmony with the Changed Conditions; and as the changes of conditions are permanent changes, in the sense of not reverting back to identical previous conditions, the changes of organic forms must be in the same sense permanent, and thus originate Species .
Change of External Conditions , universal and unceasing.—See “Lyell’s Principles of Geology.”
297