““Causes of Variability — Effects of Habit and the use and disuse of Parts — Correlated Variation — Inheritance — Character of Domestic Varieties — Difficulty of distinguishing between Varieties and Species — Origin of Domestic Varieties from one or more Species — Domestic Pigeons, their Differences and Origin — Principles of Selection, anciently followed, their Effects — Methodical and Unconscious Selection — Unknown Origin of our Domestic Productions — Circumstances favourable to Man's power of Selection.””
![“I am quite conscious that my speculations run beyond the bounds of true science…It is a mere rag of an hypothesis with as many flaw[s] & holes as sound parts.” quote by Charles Darwin](https://sms4smile.com/quotes/img-quotes/958/charles-darwin-507_bounds_i-am-quite-conscious-that-my-speculation_35382.jpg)
