“Referring to a professor aboard ship: This passenger — the first and only one we had had, except to go from port to port on the coast — was no one else than a gentleman whom I had known in my smoother days, and the last person I should have expected to see on the coast of California — Professor Nuttall of Cambridge. I had left him quietly seated in the chair of the Botany and Ornithology Department at Harvard University, and the next I saw of him, he was strolling about San Diego beach, in a sailors' pea jacket, with a wide straw hat, and barefooted, with his trousers rolled up to his knees, picking up stones and shells… I was often amused to see the sailors puzzled to know what to make of him, and to hear their conjectures about him and his business… The Pilgrim's crew called Mr. Nuttall "Old Curious," from his zeal for curiosities; and some of them said that he was crazy, and that his friends let him go about and amuse himself this way. Why else would (he)… come to such a place as California to pick up shells and stones, they could not understand. One of them, however, who had seen something more of the world ashore said, "Oh, 'vast there!… I've seen them colleges and know the ropes. They keep all such things for cur'osities, and study 'em, and have men a purpose to go and get 'em… He'll carry all these things to the college, and if they are better than any that they have had before, he'll be head of the college. Then, by and by, somebody else will go after some more, and if they beat him he'll have to go again, or else give up his berth. That's the way they do it. This old covery knows the ropes. He has worked a traverse over 'em, and come 'way out here where nobody's ever been afore, and where they'll never think of coming."”

This explanation satisfied Jack; and as it raised Mr. Nuttall's credit, and was near enough to the truth for common purposes, I did not disturb it.
Source: Two Years Before the Mast (1840), p. 267