Early in August, FitzRoy discussed this position with Beaufort, who had a scientific network of friends at the University of Cambridge. At Beaufort's request, mathematics lecturer George Peacock wrote from London to Henslow about this "rare opportunity for a naturalist", saying that an "offer has been made to me to recommend a proper person to go out as a naturalist with this expedition", and suggesting the Reverend Leonard Jenyns. Though Jenyns nearly accepted and even packed his clothes, he had concerns about his obligations as vicar of Swaffham Bulbeck and about his health, therefore Jenyns declined the offer. Henslow briefly thought of going, but his wife "looked so miserable" that he quickly dropped the idea. Both recommended bringing the 22-year-old Charles Darwin, who was on a geology field trip with Adam Sedgwick. He had just completed the ordinary Bachelor of Arts degree which was a prerequisite for his intended career as a parson.