Sketches New and Old, Part 2[Illustrated]

Mark Twain (or Samuel Langhorne Clemens) was born on 30th Nov, 1835 and died on 21st April, 1910. He was an American author and humourist. His famous works include: The Adventures of Tom Sawyer (1876), and its sequel, Adventures of Huckleberry Finn (1885), the latter often called "the Great American Novel."
Excerpt-"YOUNG AUTHOR."--Yes, Agassiz does recommend authors to eat fish, because the phosphorus in it makes brain. So far you are correct. But I cannot help you to a decision about the amount you need to eat--at least, not with certainty. If the specimen composition you send is about your fair usual average, I should judge that perhaps a couple of whales would be all you would want for the present. Not the largest kind, but simply good, middling-sized whales.