Acerca de este libro
Mi biblioteca
Libros en Google Play
Variations in the intensity of the struggle for existence..
112
Cellular continuity with differentiation
The inheritance or non-inheritance of acquired characters
Origin of variations on the latter view
Hypothesis of organic combination
The extrusion of the second polar cell
The protozoan origin of variations
How can the body influence the germ?
Is there sufficient evidence that it does?
Summary and conclusion
CHAPTER VI.
ORGANIC EVOLUTION.
The diversity of animal life
The evolution theory
Natural selection: not to be used as a magic formula
Panmixia and disuse
Sexual selection or preferential mating
Use and disuse
The nature of variations..
The inheritance of variations
The origin of variations..
123
124
129
130
131
134
..
138
142
146
149
150
153
156
159
162
175
. 177
181
183
189
197
209
216
223
231
241
The generic difference between the minds of man and brute ..
350
CHAPTER X.
THE FEELINGS OF ANIMALS: THEIR APPETENCES AND EMOTIONS.