In 2003, Bill Sargent bought a big pink house in Ipswich, Massachusetts. His home sits on what is known as the Great Marsh, a fascinating patch of wetland shared by Massachusetts and New Hampshire. Sargent received a grant to study some of the rare and endangered ground-nesting birds that inhabit the public land adjacent to his property. Ipswich Marsh is about these birds, but much else as well. Organized by the seasons of the year, The House on Ipswich Marsh features SargentÕs trademark interplay of information about the natural world, ecology, and politics. In ÒSpring,Ó the reader learns about the geological history of the Marsh; the migration patterns of bobolinks; the courtship flights of woodcocks; ticks and Lyme disease; the mating of horseshoe crabs and the underwater arrival of zooplankton, fish eggs, and moon jellyfish. ÒSummerÓ introduces plate tectonics and glaciers; sea level rise and glacial rebound; diving at night among lobsters and stone crabs; a day on CraneÕs Beach; and a bike trip on Argilla Road. ÒAutumnÓ illuminates fishing; the natural and cultural history of Hog Island; harvest time on Appelton Farm; and a Native American Thanksgiving. ÒWinterÓ describes the formation of dunes and sandbars; the mating behavior of seals; coyote hunting deer at night; and a late-winter blizzard in which Sargent spies a red-tailed hawk, waiting, like the author, for the return of spring.

Four seasons of immersion in New England’s Great Marsh “Like Wendell Berry and Rachel Carson, Hanlon is a true poet-ecologist, sharing in exquisitely resonant prose her patient observations of nature’s most intimate details. As she and her husband, through summer and snow, swim their local creeks and estuaries, we marvel at the timeless yet fragile terrain of both marshlands and marriage. This is the book to awaken all of us, right now, to how our coastline is changing and what it means for our future.” —Julia Glass, author of Three Junes and A House Among the Trees The Great Marsh is the largest continuous stretch of salt marsh in New England, extending from Cape Ann to New Hampshire. Patricia Hanlon and her husband built their home and raised their children alongside it. But it is not until the children are grown that they begin to swim the tidal estuary daily. Immersing herself, she experiences, with all her senses in all seasons, the vigor of a place where the two ecosystems of fresh and salt water mix, merge, and create new life. In Swimming to the Top of the Tide, Hanlon lyrically charts her explorations, at once intimate and scientific. Noting the disruptions caused by human intervention, she bears witness to the vitality of the watersheds, their essential role in the natural world, and the responsibility of those who love them to contribute to their sustainability. Patricia Hanlon is a visual artist who paints the beautiful ecosystem of New England’s Great Marsh and is involved in the watershed organizations of Greater Boston. Swimming to the Top of the Tide is her first book.

A science writer reflects on his journey into the profession.