John Nichols and Robert Murphy were taking the great white more seriously. In Scientific American, Murphy wrote that the "white shark is perhaps the rarest of all noteworthy sharks ... their habits are little known, but they are said to feed to some extent on big sea turtles ... Judging from its physical make-up, it would not hesitate to attack a man in open water." He concluded that "because it is evident that even a relatively small white shark, weighing two or three hundred pounds, might readily snap the largest human bones by a jerk of its body, after it has bitten through the flesh." Robert Murphy and John Nichols wrote in October 1916: After the Matawan attacks, Frederic Lucas admitted on the front page of The New York Times that he had underestimated sharks. The paper reported that "the foremost authority on sharks in this country has doubted that any shark ever attacked a human being, and has published his doubts, but the recent cases have changed his view." Nichols later documented the occurrence of the great white shark in his biological survey Fishes of the Vicinity of New York City (1918), "Carcharodon carcharias (Linn.) White Shark. "Man-eater." Accidental in summer. June to July 14, 1916." Cultural impact Whereas sharks had previously been seen as harmless, after the Jersey Shore attacks of 1916 the pendulum of public opinion swung to the other extreme, and sharks quickly came to be viewed not only as eating machines, but also as fearless, ruthless killers. After the first fatality, newspaper cartoonists began using sharks as caricatures for political figures, German U-boats, Victorian morality and fashion, polio, and the deadly heat wave threatening the Northeast at the time. Fernicola notes, "Since 1916 was among the years that Americans were trying to break away from the rigidity and conservatism of the Victorian period, one comic depicted a risqué polka-dot bathing suit and advertised it as the secret weapon to keep sharks away from our swimmers." Another cartoon depicted "an exasperated individual at the end of a dock that displays a 'Danger: No Swimming' sign and mentions the three most emphasized 'danger' topics of the day: 'Infantile Paralysis (polio), Epidemic Heat Wave, and Sharks in the Ocean'." The cartoon is entitled "What's a Family Man to Do?" With World War I ongoing in 1916 and America's growing distrust of Germany, cartoonists depicted U-boats with the mouth