Pesky Details: Essays for "Left Brain" Christians
Chapter V - Laws of Variation
Effects of the Increased Use and Disuse of Parts, Controlled by Natural Selection
Acclimatisation
Correlated Variation
Multiple, Rudimentary, and Lowly-organised Structures Are Variable
A Part Developed in Any Species in an Extraordinary Degree or Manner, in Comparison with the Same Part in Allied Species, Tends to be Highly Variable
Specific Characters More Variable Than Generic Characters
Secondary Sexual Characters Variable
Distinct Species Present Analogous Variations, so that a Variety of One Species often Assumes a Character Proper to an Allied Species, or Reverts to some of the Characters of an Early Progenitor
Chapter VI - Difficulties of the Theory
On the Absence or Rarity of Transitional Varieties
On the Origin and Transitions of Organic Beings with Peculiar Habits and Structure
Organs of Extreme Perfection and Complication
Modes of Transition
Special Difficulties of the Theory of Natural Selection
Organs of Little Apparent Importance, as Affected by Natural Selection
Utilitarian Doctrine, How Far True: Beauty, How Acquired
Chapter VII - Miscellaneous Objections to the Theory of Natural Selection
Chapter VIII - Instinct
Inherited Changes of Habit or Instinct in Domesticated Animals
Special Instincts
Instincts of the Cuckoo
Slave-making Instinct
Cell-making Instinct of the Hive-bee
Objections to the Theory of Natural Selection as Applied to Instincts: Neuter and Sterile Insects
Chapter IX - Hybridism
Degrees of Sterility
Laws Governing the Sterility of First Crosses and of Hybrids
Origin and Causes of the Sterility of First Crosses and of Hybrids
Reciprocal Dimorphism and Trimorphism
Fertility of Varieties when Crossed, and of their Mongrel Offspring, not Universal
Hybrids and Mongrels Compared, Independently of their Fertility
Chapter X - On the Imperfection of the Geological Record
On the Lapse of Time, as Inferred from the Rate of Deposition and Extent of Denudation
On the Poorness of Paleontological Collections
On the Absence of Numerous Intermediate Varieties in Any Single Formation
On the Sudden Appearance of Whole Groups of Allied Species
On the Sudden Appearance of Groups of Allied Species in the Lowest Known Fossiliferous Strata
Chapter XI - On the Geological Succession of Organic Beings
On Extinction
On the Forms of Life Changing Almost Simultaneously throughout the World
On the Affinities of Extinct Species to Each Other, and to Living Forms
On the State of Development of Ancient Compared with Living Forms
On the Succession of the Same Types within the Same Areas, during the later Tertiary Periods
Chapter XII - Geographical Distribution
Single Centres of Supposed Creation
Means of Dispersal
Dispersal during the Glacial Period+
Alternate Glacial Periods in the North and South
Chapter XIII - Geographical Distribution - Continued: Fresh-Water Productions
On the Inhabitants of Oceanic Islands
Absence of Batrachians and Terrestrial Mammals on Oceanic Islands
On the Relations of the Inhabitants of Islands to Those of the Nearest Mainland