Notes on the Fenland

In Short

This geological study investigates the physical evolution of the English Fenland, tracing its formation from ancient valley denudation and glacial deposits to the accumulation of turbiferous peat beds. Through meticulous examination of strata, borings, fossil remains, and archaeological discoveries like the Shippea Man, the author constructs a detailed scientific narrative of environmental transformation. The work has lasted because it combines rigorous fieldwork with a clear, inquisitive approach to understanding how natural forces and human history intertwine within a unique landscape.

The Story

The inquiry begins with the grand geography of the Fenland, describing it as a buried basin behind a breached barrier, representing the drowned lower end of an ancient valley system. The narrative establishes how slow denudation by rivers like the Great Ouse leveled underlying clays behind a former chalk barrier across the Wash. Intermittent tectonic movements and glacial episodes intervened, dropping boulder clay deep into ancient valleys that now lie far below sea level. As the sea began to ebb and flow through gaps in the barrier, upland floodwaters clashed with marine forces, setting the stage for the deposition of the Fen Beds.

Distinguishing between the older sandy and gravelly Areniferous series and the younger peaty Turbiferous series forms a crucial core of the argument. While the older gravels harbor remains of extinct ice-age mammals like Elephas antiquus and Rhinoceros tichorhinus, the newer Fen Beds contain no such beasts. Instead, they preserve a distinct fauna including the brown bear, beaver, wild boar, and the formidable extinct wild bull known as the urus. Through various deep sections exposed by engineering works—such as bridge building near Ely or drainage excavations—the text demonstrates that the Fen Beds are not composed solely of peat, but consist largely of alternating layers of silt, clay, marl, and sand, pointing to shifting channels and a gradually sinking terrain.

The investigation moves toward the coast and into the Wash, examining tidal flats, shifting banks of mud, and estuarine life to understand marginal sedimentary processes. It then turns to the eastern margins near Littleport and Shippea Hill, where a significant archaeological discovery anchors the geological timeline. Here, beneath layers of peat and shell marl, lies a human skeleton—the Shippea man—cramped into the base of the peat just above the buttery clay.

The progression concludes with an analysis of this human remain and its companions. Rather than dating to deep prehistoric or Neanderthal antiquity, the Shippea man features a prominent brow ridge and physical characteristics that closely align with the Brachycephalic Bronze Age race, bearing a striking resemblance to Round-barrow skulls from Stonehenge and Gristhorpe. Supported by anatomical descriptions from Professor Alexander Macalister, this final revelation bridges the gap between natural history and human settlement, closing the study by placing the late prehistoric inhabitants firmly within the evolving environmental chapters of the fenlands.

How It Unfolds

Mapping the basin The investigation opens by establishing the Fenland as a drowned valley system, detailing how ancient rivers cut down their channels behind a breached chalk barrier. It explains the intermittent movements of elevation and depression that pushed ancient valley bottoms far below current sea levels.

Uncovering the strata The text contrasts the older sand and gravel deposits against the younger turbiferous series, carefully noting the distinct mammalian fossils found within each layer. Detailed engineering sections from Cambridge to Ely reveal that the fen beds consist of complex, shifting sequences of clay, silt, and marl rather than continuous layers of pure peat.

Tracing the flora and fauna Examinations of buried trees, floating aquatic plants, and bog-iron explain the physical mechanics of swamp vegetation and peat accumulation. The narrative catalogues the presence and absence of various species, from extinct bears and giant wild cattle to beavers and pelicans, mapping out historical changes in local habitats.

Reaching the coast The inquiry extends outward to the marine and estuarine environments of the Wash, analyzing tidal action, shifting sandbanks, and marginal forest beds. This transitional zone illuminates how upland waters and marine forces continually interacted before artificial sea banks altered the landscape.

Discovering the Shippea man The study culminates at Shippea Hill, where trenching in the fen reveals a human skeleton buried deep in the peat above the buttery clay. Detailed anatomical analysis of the skull and long bones establishes the remains as a representative of the Bronze Age, connecting human history directly to the closing epochs of the fenlands.

The People

Though this is a work of natural history rather than fiction, its pages feature key historical, natural, and scholarly figures who drive the inquiry forward. Alexander Macalister wants to accurately determine the anatomical classification of the ancient human remains discovered in the fens. Standing in his way are the fragmented, fragile condition of the bones and the initial temptation to misattribute prominent brow ridges to extreme antiquity, but through careful measurement and comparison with Stonehenge and Gristhorpe specimens, he ends up successfully identifying the skeleton as a representative of the Bronze Age.

Edward Forbes wants to establish meaningful connections between representative biological forms across geological epochs, seeking clarity on how fauna shifts between the gravels and the turbiferous series. Pliny seeks to understand unfamiliar substances, attempting to document northern practices of burning turf despite lacking personal familiarity with the material. Meanwhile, historical chroniclers like Ingulph and Dugdale want to document ancient forest rights and land usage, but face conflicting records regarding whether medieval royal forests actually contained dense woodlands or merely open marsh islands. Finally, the anonymous Shippea man wanted only to navigate or dwell in the wetlands, but found himself trapped by the encroaching mire, ending up preserved vertically in the dark peat as a silent marker of a transitional era.

In Its Own Voice

Describing the geographical origins of the region, the author emphasizes its waterlogged nature from the very beginning.

The Fenland is a buried basin behind a breached barrier.

Addressing the distinct absence of certain large mammals within the upper strata, the author clarifies a common misconception about the fossil record.

There have never been any remains of Elephant or Rhinoceros found in the Turbiferous series.

Summarizing the physical posture of the key archaeological discovery, the author notes the unusual position of the skeleton.

In the base of the peat about four inches above the Buttery Clay a human skeleton was found bunched up and crowded into a small space, less than two feet square, as if the body had settled down vertically.

What It's Really About

At its core, the book explores the deep continuity and abrupt transitions that define environmental evolution. It investigates how imperceptible, long-term geographic movements—such as land subsidence and sea-level shifts—produce dramatic local changes in low-lying basins. The text asks how natural history and human presence intersect, examining the boundary between geological epochs and human habitation. By mapping the physical layers of the fens, the author seeks to decode the complex dialogue between land, water, climate, and time, demonstrating that seemingly static landscapes are actually the product of continuous, dynamic conflict between opposing natural forces.

Why Read It Today

Modern readers with an appreciation for natural history, geology, and local landscape archaeology will find deep satisfaction in this meticulous work. Reading it feels like walking alongside a dedicated Victorian scientist who trusts the evidence of his own eyes and spade, patiently explaining strata, fossils, and borings without a trace of academic aridity. The book rewards patience, offering a vivid window into how the English countryside was pieced together stratum by stratum.

Readers should be prepared for period technical terminology, detailed lists of faunal remains, and dense stratigraphical measurements that reflect nineteenth-century scientific methodology. Yet these very difficulties ground the narrative in authentic, tangible research rather than vague abstraction. What stays with you long after closing the book is the quiet poetry of the landscape—the image of ancient rivers cutting through hidden clays, forests buried beneath spongy peat, and human lives caught centuries ago in the shifting, watery expanses of the fens.