A history of hurricanes in New York—including the day in 1893 that Hog Island disappeared for good. Last week, as the news from New Orleans kept getting worse, New York found itself in the position of watching another American city’s catastrophe, and giving back some of what was extended to us—in money and worry—four years ago. Despite the horrors we’ve seen, this was not one we could easily imagine. But our own hurricane history is more tumultuous than many New Yorkers might think. In 1821, when a major hurricane made a direct hit on Manhattan, stunned residents recorded sea levels...