On the strength of Henslow's recommendation, Peacock offered the post to Darwin, who wrote from Shrewsbury to Henslow (August 30, 1831):
"Mr. Peacock's letter arrived on Saturday, and I received it late yesterday evening. As far as my own mind is concerned, I should, I think _certainly_, most gladly have accepted the opportunity which you so kindly have offered me. But my father, although he does not decidedly refuse me, gives such strong advice against going, that I should not be comfortable if I did not follow it.
"My father's objections are these: the unfitting me to settle down as a Clergyman, my little habit of seafaring, _the shortness of the time_, and the chance of my not suiting Captain Fitz-Roy. It is certainly a very serious objection, the very short time for all my preparations, as not only body but mind wants making up for such an undertaking. But if it had not been for my father I would have taken all risks. What was the reason that a Naturalist was not long ago fixed upon? I am very much obliged for the trouble you have had about it; there certainly could not have been a better opportunity....
"Even if I was to go, my father disliking would take away all energy, and I should want a good stock of that. Again I must thank you, it adds a little to the heavy but pleasant load of gratitude which I owe to you."
The following letter was written by Darwin from Maer, the house of his uncle Josiah Wedgwood the younger. It is plain that at first he intended to await a written reply from Dr. Darwin, and that the expedition to Shrewsbury, mentioned in the _Autobiography_, was an afterthought.
MY DEAR FATHER--I am afraid I am going to make you again very uncomfortable. But, upon consideration, I think you will excuse me once again stating my opinions on the offer of the voyage. My excuse and reason is the different way all the Wedgwoods view the subject from what you and my sisters do.
I have given Uncle Jos[87] what I fervently trust is an accurate and full list of your objections, and he is kind enough to give his opinions on all. The list and his answers will be enclosed. But may I beg of you one favour, it will be doing me the greatest kindness, if you will send me a decided answer, yes or no? If the latter, I should be most ungrateful if I did not implicitly yield to your better judgment, and to the kindest indulgence you have shown me all through my life; and you may rely upon it I will never mention the subject again. If your answer should be yes; I will go directly to Henslow and consult deliberately with him, and then come to Shrewsbury.