NON-FICTION: The Man in the Half-Moon

HENRY HUDSON—Llewelyn Powys—Harpers ($4). Two waters on the North American continent were grooved by the bow of Hudson's boat, and now bear his name to witness it.

One is the river that slides down through a quiet country where the hills are piled up like velvet pillows, past the quick glittering chaos of Manhattan, into the quiet Atlantic. Up this river the Captain sailed, hoping to find the splendor of China and a western ocean beyond some twist of a valley in those small and comfortable mountains.

The other water is an enormous shallow bay, spread like a thin shield across...