Colored stripes undulate across a diagram and form peaks & valleys labeled subsidence, elevation, erosion, & gorge.

Fig 1: Orra White Hitchcock, Vallies, ca. 1828–1840, pen and ink on linen, Frost Library Archives & Special Collections

A birds-eye view of a wide valley, depicting a river flanked by trees and farmland, with vast hills in the background.

Fig. 2: The Pioneer Valley as seen from Mount Sugarloaf, South Deerfield, MA. Photo via the Amherst College Center for Community Engagement.

A Convergence of Art and Science

Created between 1828 and 1840, Vallies (Fig. 1) is one of more than sixty large‑format geological charts that Orra White Hitchcock produced in collaboration with her husband, Edward Hitchcock.1 This work was designed to represent the stratigraphic history of the Connecticut River Valley for a classroom audience at Amherst College. The chart is made with pen and ink, with hand‑tinted watercolor washes on coarse linen—a medium that immediately speaks to a period when artistic production and scientific inquiry were intertwined rather than separated into distinct disciplines. Instead of presenting nature in abstract numerical data or rigid diagrams, Hitchcock’s chart brings in color, texture, and dynamic form to capture the relationship between natural forces. Such an approach reflects a time when understanding the world was as much about aesthetic experience and moral reflection as it was about empirical measurement.

Visual Language and Function

At first glance, Vallies captivates the viewer with its carefully drawn bands of pastel hues—yellow, green, blue, pink, gray, and lavender—that are arranged in parallel layers. Each color band, outlined in black ink, not only shows distinct strata but also creates a rhythmic visual experience that guides the viewer’s eye from the arching peak on the left—labeled “V. of Elevation”—to the U‑shaped trough on the right, marked “V. of Erosion.” Such an arrangement is not arbitrary. It reflects Earth’s surface processes: one that lifts and elevates and another that wears away and transforms. This contrast might prompt modern observers to consider how weather-related forces, like precipitation and wind, contribute to erosion, while tectonic uplifts create areas of elevation. In effect, the chart functions as a visual representation of the forces of nature, turning abstract geological principles into something that is both accessible and visually striking.

The chart’s unhemmed edges and the visible weave of the linen material further show its function as a wall‑mounted aid. In a classroom setting, the object served not only as a scientific illustration but as an invitation to engage with nature’s unfolding story. The Pioneer Valley—the section of the Connecticut River Valley in which Hitchcock was based—is home to various hills and troughs (Fig. 2), making the diagram especially relevant.2 Students at nearby Amherst College could “read” the story of the land, with each band representing a chapter written over vast spans of geological time. By doing so, Hitchcock’s work challenges the notion that natural phenomena are static. Instead, it emphasizes dynamic processes—in this case, those linked to the weather, climate, and inherent earth movements—that continuously reshape the landscape.

Revealing and Challenging Conceptions of Weather

One of the deeper questions this artifact invites us to ponder is how it reflects contemporary attitudes toward weather and natural processes. In a period before the advent of modern meteorological science, weather was not merely a background condition but an active force seen with almost sacred significance. The very act of differentiating “V. of Elevation” from “V. of Erosion” can be read as an early recognition of the agency of weather. Erosion, driven by water, wind, and temperature fluctuations, is a process that continuously sculpts the surface of the Earth. Here, Hitchcock’s diagram implicitly refers to weather as a creative—if at times destructive—agent.

The smooth gradations and rhythmic repetition of the colored bands challenge modern conceptions of weather as an unpredictable and chaotic force. Instead, the artwork suggests that weather—and the gradual, systematic ways in which it operates—is orderly, measurable, and ultimately graspable through careful observation. In other words, the diagram suggests that the forces that drive natural processes are not random—they follow patterns that can be delineated through clear, abstract visuals. This perspective mirrors the broader nineteenth‑century effort to chart and classify nature systematically.3

Reimagining Weather Through Visual Metaphor

The deliberate use of color and form in Vallies invites viewers to consider the sensory dimensions of weather and geological transformation. The pastel hues evoke a quiet dignity and subtlety- attributes that may seem at odds with the dynamic, often violent image of weather as a storm or tempest. However, this contrast is purposeful. Rather than depicting the immediate, transient power of a storm, Hitchcock chose to represent weather through its cumulative effects over time—its slow yet inexorable work of erosion and uplift. In doing so, the chart sees the agency of weather as a force that both shapes and sculpts the Earth’s features over immense timescales.

The New Way of Interdisciplinary Thinking

Hitchcock’s Vallies is emblematic of a broader approach to knowledge that defies the later compartmentalization of disciplines.4 It is at once a scientific diagram, an artwork, and a teaching instrument—a trinity that reflects the dynamic between human perception and the natural world. The object challenges us not only to consider the material effects of weather in the form of erosion and stratification but also to appreciate the human impulse to record, interpret, and find meaning in those processes.

For modern audiences, the work stands as a powerful reminder of the role that visual culture has played in the formation of scientific knowledge. Its status as a classroom chart meant that it was crafted with the intention of making complex ideas accessible. At the same time, its artistic finesse allows it to have an aesthetic appeal that continues to capture the imagination of viewers. This legacy—of both scientific utility and artistic expression—is what makes Vallies an object of cultural and historical significance.

In reflecting on this artifact, we see that the ways in which early American naturalists represented weather and geological processes were not dictated solely by empirical observation, but also by a profound sense of wonder and reverence for the natural world. By visually encoding the processes of weather and erosion into a single composition, Orra White Hitchcock provided her audience with a model for understanding the dynamic, layered nature of the Earth. In doing so, she not only contributed to scientific knowledge but also invited viewers to consider the deeper relationships between nature and art.

Conclusion

Vallies is more than a simple geological diagram—it is a layered narrative of natural processes rendered with both scientific precision and artistic grace. It reveals how early nineteenth‑century thinkers, operating within a framework that united art, science, and religion, sought to capture the essence of natural processes like weather and erosion. The chart’s layering and deliberate color choices communicate a message of order, continuity, and the profound beauty of nature’s transformations. By framing weather and its processes as part of an orchestrated plan, Hitchcock’s work challenges modern views of climate and weather as inherently chaotic, inviting us to appreciate the slow, deliberate dance of geological change. Through Vallies, we are given not only a snapshot of early American science, but also a visual reflection on the ways in which natural forces change our landscape, and the way we perceive and understand it.

Footnotes

  1. Herbert, Robert L. A Woman of Amherst : The Travel Diaries of Orra White Hitchcock, 1847 and 1850. iUniverse, 2008. ↩︎
  2. Robert L. Herbert and Daria D’Arienzo, Orra White Hitchcock, 1796–1863: An Amherst Woman of Art and Science (Mead Art Museum, 2011). ↩︎
  3. Christopher Fiebrich, “The History of Surface Weather Observations in the United States,” Earth-Science Reviews 93, no. 3–4 (2009): 77–84. ↩︎
  4. Daria D’Arienzo, “The ‘Union of the Beautiful with the Useful’: Through the Eyes of Orra White Hitchcock,” The Massachusetts Review 51, no. 2 (2010): 294–336. ↩︎