Whaler 'Harpooner', c. 1831 (Science Museum)
Should an 1830s medical man long for the experience of strange seas and wondrous lands, he might find himself a position as a surgeon on a whaling ship, as described by Joan Druett in Rough Medicine: Surgeons at Sea in the Age of Sail:
Dr. James Brown found his ship in London. Accordingly, he was on board when the Japan was "towed by the Nelson, Tug Steamboat to Gravesend," on December 15, 1834. In May 1837, Dr. Fysh of the Coronet had the same experience, except that his ship was towed by the Tam O'Shanter. "All the men or nearly all drunk," he noted, adding, "That's nothing! It will be long before Jack [slang for a sailor] gets another chance of being so again! So go it my Boys make the best of your time."
Liverpool whaler c. 1834, Francis Hustwick (Ferens Art Gallery)
On October 14, 1837, on the far side of the Atlantic, another of our whaling surgeons boarded his ship—but probably not in a spirit of high adventure and lively anticipation. His feelings, by contrast, were much harder to gauge, since he had signed on to the voyage under very strange circumstances for a gentleman of his attainments.
This fellow's name was John B. King, and he hailed from the island of Nantucket. While London whalers finished their fitting out at Gravesend, Nantucket whaleships completed their preparations for voyage at Edgartown, Martha's Vineyard, where Dr. King arrived on that date. [...] In 1832, at the age of twenty-four, King had graduated from the New York College of Physicians and Surgeons with the very substantial degree of Doctor of Medicine and Surgery. He was immediately awarded a certificate that allowed him to practice in New York [...] These elaborate qualifications failed to settle him down. He moved to Nantucket—and then he signed onto the whaler.
It was a most eccentric decision. For a start, there was no legal reason for Dr. King to be on board the Aurora. While an English whaling master was required by law to ship a surgeon, American whaleship captains were not.
— Joan Druett, Rough Medicine: Surgeons at Sea in the Age of Sail
'South Sea Whale Fishery': 1834 print by William John Huggins (New Bedford Whaling Museum)