Chapter 5: Foxing

The spots appeared on paper like age spots on skin — small, irregular, brown, scattered across the surface in patterns that seemed random but were not, that followed the paper's internal structure, its fiber distribution, its mineral content, its history of exposure to moisture and warmth, its particular chemistry, its particular vulnerability.

Foxing.

The term had been in use since at least the mid-nineteenth century, and its etymology was debated. Some said it came from the color — fox-brown, the rusty red-brown of the spots that resembled the color of a fox's coat. Others said it came from the French word faux, meaning false, because the spots resembled intentional marks but were not. Still others suggested a connection to the Old English foxung, meaning to become discolored. The conservators Ruth knew did not spend much time on etymology. They spent their time on cause, and the cause of foxing was, after two centuries of study, still not definitively established.

There were two competing theories. The first was biological: foxing was caused by fungal growth within the paper fibers. Certain species of fungi, particularly those in the genera Aspergillus and Penicillium, could colonize paper in conditions of elevated humidity, and their metabolic byproducts — pigmented compounds produced during the digestion of cellulose — stained the paper brown. Under this theory, foxing was essentially a mold stain, a biological mark left by organisms that had fed on the paper and moved on or died, leaving their pigmented waste behind.

The second theory was chemical: foxing was caused by the oxidation of metallic impurities in the paper, particularly iron. Paper made from rags or plant fibers inevitably contained trace amounts of iron, either from the source material or from the water used in the papermaking process or from the equipment used to prepare the pulp, and over time these iron particles oxidized — rusted, essentially — and the rust stained the surrounding fibers brown. Under this theory, foxing was not biological but chemical, a slow rusting of the paper from within, the iron impurities acting as tiny points of self-destruction embedded in the sheet at the moment of its creation.

The debate had been going on for decades. Studies had been published supporting both theories. Some foxing spots, when examined under a microscope, showed clear evidence of fungal hyphae — the threadlike filaments of the fungal body — winding through the paper fibers. Others showed no biological activity at all but did show elevated concentrations of iron at the center of the spot, consistent with the oxidation theory. Some showed both — fungal hyphae and elevated iron — which complicated the picture further, because the fungi might have been attracted to the iron-rich areas of the paper, or the iron might have been deposited by the fungi, or the two processes might have been operating independently in the same location.

The honest answer was that no one knew for certain what caused foxing. The honest answer was that the cause might be different in different cases — some foxing biological, some chemical, some a combination of both. The honest answer was that the effect was clear — the brown spots, the staining, the visible deterioration — but the underlying mechanism was uncertain, multiple, possibly unknowable.

Ruth found this uncertainty fascinating and, in a way that she had never articulated to anyone, comforting.

She was examining the foxing on letter number twenty-eight of the Grayson collection, a letter dated November 1862 that had particularly heavy foxing, the spots concentrated in the upper half of the sheet in a pattern that suggested exposure to moisture from above — perhaps the letter had been stored beneath something that leaked, or perhaps the attic where it had spent a century and a half had a roof that admitted rain in certain conditions, and the water had dripped onto the stored papers and the moisture had created the conditions for foxing, whether biological or chemical or both.

Under magnification, the foxing spots on this letter were unusually distinct. Each spot had a dark center — almost black — surrounded by a halo of lighter brown that faded into the paper's natural color. The dark center, Ruth knew from experience, was the point of origin — the location of the metallic impurity or the fungal colony or whatever had initiated the spot. The halo was the zone of diffusion, where the pigmented compounds — rust or fungal metabolites — had migrated outward through the paper fibers, carried by moisture, propelled by capillary action, spreading through the cellulose the way a stain spreads through fabric, the way a bruise spreads through flesh, the way anything that starts in one place eventually, given enough time and the right conditions, makes itself known in the surrounding territory.

Ruth photographed each foxing spot at high magnification. She would include these images in her examination report, but she also found herself looking at them with an attention that went beyond the professional, an attention that was closer to contemplation, the way one might look at a landscape or a painting or a face, seeing not just the information but the pattern, the aesthetic, the thing that the thing was.

The foxing spots were beautiful. She would never say this to Miriam or to James or to anyone at the Library, because beauty was not a relevant category in conservation work, because the conservator's job was to treat damage and not to admire it, but the foxing spots were beautiful in the way that rust was beautiful, that lichen was beautiful, that the patterns of natural decay were beautiful — intricate, organic, unrepeatable, each one different from every other one, each one the product of a specific set of conditions that would never exist again in exactly the same configuration.

She was not supposed to think this way. She was supposed to see foxing as damage, as deterioration, as a condition to be documented and, where possible, treated. And she did see it that way. But she also saw it as evidence of time's passage, as a visible record of the paper's history, as a mark that the paper itself had made — or that time had made through the paper — that was as meaningful, in its way, as the marks that Margaret Grayson had made with her pen.

The ink was intentional. The foxing was not. But both told stories, and both were part of the document's identity, and the conservator's job was to decide which marks to preserve and which to remove, which parts of the document's history to honor and which to erase in the name of preservation.

This was the central ethical tension of conservation: every treatment changed the document. Deacidification altered the paper's chemistry. Mending added new material. Lining changed the document's thickness and flexibility. Bleaching removed stains but also removed some of the original sizing and color. Every intervention, no matter how careful, no matter how reversible in theory, left its mark on the object, changed it from what it was to what the conservator decided it should be, and the conservator's decisions — however informed by science and training and professional standards — were ultimately judgments, acts of interpretation, choices about what mattered and what didn't, what to keep and what to let go.

Ruth made these choices every day. She made them with confidence and competence and a clear professional conscience, because the alternative — doing nothing, letting the documents deteriorate untreated — was worse. The purpose of conservation was not to freeze documents in time but to slow their deterioration, to stabilize them, to give them a future, and this required intervention, which required choices, which required the willingness to change the thing you were trying to save.

But the foxing.

The foxing raised a particular question that Ruth had been thinking about for years without resolving. When you treated foxing — when you applied a chemical bleaching agent to reduce the brown stains, or when you deacidified the paper to slow the oxidation that was causing new spots to form — you were removing or preventing marks that the paper had developed over time, marks that were not part of the original document but that were part of its history, part of the story of what had happened to it since it left the writer's hand. You were, in a sense, erasing part of the document's biography. You were deciding that the document's original appearance was more important than its accumulated history, that the clean, unmarked surface of 1862 was more authentic than the foxed, stained surface of 2026.

This was a standard conservation decision, and Ruth agreed with it in principle. The purpose of the document was to convey the writer's words, and anything that obscured those words — staining, foxing, discoloration — reduced the document's legibility and therefore its utility, and therefore its value, and therefore its claim on the conservator's attention.

But she could not entirely shake the feeling that the foxing was also a kind of writing, a text composed by time and chemistry and chance, and that removing it was a kind of erasure.

She shared this thought with James over lunch, not because she expected him to agree but because James was the one person in the lab who was willing to entertain abstract questions about their work, who did not immediately default to the standard professional answers but who would sit with a question and turn it over and consider it from multiple angles before responding.

They were in the staff kitchen, eating their respective lunches — Ruth's rice and beans, James's sandwich — and James listened to her foxing meditation with the patient attention he gave to everything, and when she finished he said, "You're describing the Ship of Theseus problem."

"I'm not."

"You are. If you remove the foxing and replace the sizing and line the paper and deacidify the fibers, at what point is the document no longer the document. At what point have you replaced enough of the original to create something new."

"That's a different question. I'm asking whether the foxing itself is part of the document. Whether removing it is a loss."

"It's a loss of information," James said. "The foxing tells you something about the document's storage history. Where it got wet. How long it was in certain conditions. That's data."

"But we photograph it before treatment. We document the foxing. We preserve the information even if we remove the stain."

"Then what are you asking."

Ruth thought about it. "I'm asking whether there's a difference between documenting something and preserving it. Whether a photograph of foxing is the same as foxing."

James took a bite of his sandwich. "No," he said. "It's not. A photograph is a representation. The foxing is the thing. But we can't keep the thing if keeping the thing means losing the document. The foxing is destroying the paper. Or at least it correlates with destruction — the same conditions that cause foxing also cause degradation. You can't preserve the foxing without preserving the conditions that produce it, and the conditions that produce it will eventually destroy the paper."

"So we have to choose."

"We always have to choose. That's the job."

Ruth ate her rice and beans and thought about choice and thought about the letters in her closet, the ones she had not chosen to treat, the ones she had not chosen to examine, the ones she had not chosen to open, and she wondered whether not choosing was itself a choice, whether inaction was a form of action, whether the decision to do nothing was the most consequential decision of all because it was the one that allowed the chemistry to proceed unchecked, the acids to work, the iron to oxidize, the foxing to spread, the paper to thin, the words to fade, the thing to become nothing, slowly, invisibly, in the dark.

In the afternoon she returned to the lab and examined the remaining Grayson letters. She had eight left — numbers fifty-six through sixty-three — and they were all from the last months of the correspondence, 1864, the worst paper, the worst condition, the most damage, the most urgency. She worked through them with the same methodical precision she brought to every examination, but she was aware, in a way she had not been at the beginning of the week, of a secondary attention running beneath the professional one, a current of thought that connected the Grayson letters to her mother's letters, the Civil War correspondence to the Igbo correspondence, the paper of Virginia to the paper of Lagos, the iron gall ink of the nineteenth century to the iron gall ink of the twentieth.

The connection was not sentimental. It was material. Both sets of letters were written on paper. Both contained iron gall ink that was slowly destroying the paper it was written on. Both were deteriorating. Both needed treatment. The difference was that the Grayson letters were in her professional care, housed in a climate-controlled vault, scheduled for treatment, documented in a proposal that had been submitted to her supervisor, while her mother's letters were in a cardboard shoebox on a closet shelf, untreated, undocumented, deteriorating at a rate that Ruth could calculate but chose not to.

She finished the examination at four o'clock. All sixty-three items documented. All sixty-three treatment plans drafted. The proposal was complete.

She sat at her bench and looked at the light table, which was empty now, glowing its even, diffuse glow, the surface clean and bare, waiting for the next document. The light table did not care what was placed on it. It illuminated everything equally — the precious and the ordinary, the significant and the trivial, the words of a Confederate officer's wife and the grocery list of a forgotten clerk — with the same steady, indiscriminate, democratic light.

Ruth wondered what her mother's letters would look like on the light table.

She wondered what the foxing would look like under magnification — whether the spots would have the same dark centers and diffuse halos that she had seen on the Grayson letters, whether the fungal hyphae would be visible in the paper fibers, whether the iron concentrations would be elevated at the centers of the spots. She wondered about the pH — how far below 5.0 the earliest letters had fallen, whether the onionskin sheets were holding up better than the notebook paper, whether the air mail paper with the blue and red striped border had a different acid migration pattern than the hotel stationery.

She wondered these things with professional curiosity, and she recognized, with the self-awareness that twenty-four years of detailed, sustained attention had given her, that the professional curiosity was a disguise for something else, something that had no technical vocabulary, something that she could not document in an examination report or prescribe for in a treatment proposal, something that existed not in the paper but in the space between the paper and the reader, the space that the conservator was trained to ignore because the conservator's job was the paper, just the paper, always the paper.

But the paper was never just paper. That was the thing she had known for twenty-four years and had never fully admitted. The paper carried the writer's hand, the writer's ink, the writer's choices about paper and pen and language and what to say and what to leave unsaid, and the paper's condition — its pH, its foxing, its tears, its fold lines, its ink corrosion — was not just a chemical fact but a human one, because the chemistry was the result of human decisions: where to store the paper, how to handle it, whether to care for it, whether to neglect it, whether to keep it or throw it away.

The foxing on her mother's letters was not just fungal growth or iron oxidation. It was Ruth's negligence made visible. It was four years of inaction staining the paper the way four years of elevated humidity stained the Grayson letters in the Virginia attic. It was the brown mark of time passing without treatment, the visible evidence of what happened when the person who should have cared for the document did not.

Ruth covered the light table. She secured the vault. She left the lab.

On the Metro home she stood and held the bar and looked at her reflection in the dark window of the tunnel and thought about foxing and its uncertain cause — fungal or chemical, biological or mineral, the brown spots that appeared on old paper for reasons that no one fully understood, despite two centuries of study, despite microscopes and spectrometers and X-ray fluorescence analysis and all the tools of modern paper science.

The cause was debated. The effect was visible.

She got off at her stop. She walked the six blocks. She climbed the stairs.

She stood in the bedroom doorway and looked at the closet door.

Then she opened it.

She reached past the sweaters and took down the shoebox. It was lighter than she remembered, or perhaps she was remembering wrong, or perhaps the papers had lost mass over four years — they would have, technically, as volatile components evaporated and as loose fibers shed from the edges, though the loss would be measured in fractions of a gram, imperceptible to the hand.

She carried the box to the kitchen table and set it down.

She did not open it. Not yet. She sat with it, the way she sat with a new collection at the beginning of an examination, taking a moment before the first document was placed on the light table, taking a breath, settling her attention, preparing herself for what she was about to see.

The box was a shoebox. Nike. Women's size 8. Her mother had bought the shoes at the Balogun Market in Lagos sometime in the late 1990s, and she had worn them until they fell apart, and then she had used the box to store things, because Adaeze Okafor had been a woman who used everything until it could not be used anymore and then found a new use for it, because she had grown up in a household where nothing was wasted, where paper was scarce and valued and reused, where the back of a letter could serve as a shopping list, where an envelope could be opened and flattened and used as notepaper.

Ruth looked at the box and thought about her mother's hands — the hands that had bought these shoes and worn them and saved the box and placed the letters inside it and wrapped them in the cotton cloth with the small blue flowers — and she thought about her own hands, the conservator's hands, the hands that repaired ten thousand documents and had not repaired these.

She put her hands on the lid of the box.

She did not lift it.

She sat there for a long time, in the kitchen, in the apartment on Georgia Avenue, in the March evening, with her hands on the lid of the shoebox, and the foxing continued its slow work inside, visible or invisible, chemical or biological, its cause uncertain, its effect undeniable, and Ruth sat with her hands on the box and did not open it, not because she did not want to but because she was not yet ready, because the examination required a readiness that she did not yet have, a willingness to see what she already knew was there, and she was not yet willing, not yet ready, not yet able to bring to her mother's letters the same steady, sustained, unflinching attention that she brought to the letters of strangers.

She put the box back in the closet.

She made tea.

She went to bed.

But something had changed. She had touched the box. She had held it. She had carried it to the light. She had not opened it, but she had brought it out of the dark, and this was, in the vocabulary of conservation, the first step — not the examination, not the treatment, not the housing, but the retrieval, the moment when the document was brought from storage to the workstation, from the dark to the light, from neglect to attention.

It was not enough. But it was a beginning.