Development of Darwin's Theory - First Writings On The Theory

First Writings On The Theory

In January 1842 Darwin sent a tentative description of his ideas in a letter to Lyell, who was then touring America. Lyell, dismayed that his erstwhile ally had become a Transmutationist, noted that Darwin "denies seeing a beginning to each crop of species".

Darwin’s book The Structure and Distribution of Coral Reefs on his theory of atoll formation was published in May after more than three years of work, with Part 4: Fish of Zoology of the Voyage of H.M.S. Beagle also going to print. Illness was a continuing problem, and he and Emma left London on 18 May, visiting her parents at Maer Hall before moving on to Shrewsbury on 15 June for rest and quiet. Now Darwin "first allowed myself the satisfaction of writing a very brief abstract of my theory in pencil in 35 pages", the '"Pencil Sketch"' of his theory. This discussed farmers breeding animals, gave the analogy of overpopulation and competition leading to "Natural Selection" through the "war of nature" and the mechanism of descent. Every living thing was related in a branching pedigree, not ascending a Lamarckian ladder, and this pedigree was the proper basis for classification. He thought it "derogatory" to argue that God had made every kind of parasite and worm on an individual whim. Already, a rough form of the phrasing and ideas which he went on to publish 17 years later in the closing paragraph of On the Origin of Species can be seen in his conclusion in this first draft:

From death, famine, rapine, and the concealed war of nature we can see that the highest good, which we can conceive, the creation of the higher animals has directly come. Doubtless it at first transcends our humble powers, to conceive laws capable of creating individual organisms, each characterised by the most exquisite workmanship and widely-extended adaptations. It accords better with the lowness of our faculties to suppose each must require the fiat of a creator, but in the same proportion the existence of such laws should exalt our notion of the power of the omniscient Creator. There is a simple grandeur in the view of life with its powers of growth, assimilation and reproduction, being originally breathed into matter under one or a few forms, and that whilst this our planet has gone circling on according to fixed laws, and land and water, in a cycle of change, have gone on replacing each other, that from so simple an origin, through the process of gradual selection of infinitesimal changes, endless forms most beautiful and most wonderful have been evolved.