Halfway through the lecture, the lamp went out.

Wallace was still standing before his audience. To obtain a projector for this lecture in Salina, Kansas, he had already visited several places. The apparatus he finally borrowed was inadequate, using an ordinary oil lamp to illuminate the pictures. Now even that light was gone. He continued talking while somebody put it right.

There were about a hundred listeners, so nobody sat particularly far away. That offered some compensation for the poor equipment. Remembering the occasion later, Wallace thought the audience had seemed fairly satisfied. He did not preserve the words of his improvised passage or turn an extinguished lamp into a crisis for a scientific theory. It was an ordinary difficulty a traveling lecturer had to manage on the spot.

Yet pictures were hardly optional for somebody explaining animal coloration, mimicry, and geographical distribution. Telling an audience that two species had similar colors was different from letting people see the resemblance. Wallace brought much of the world to America through maps, diagrams, and colored slides, rather than cages full of animals.

The package holding his maps and diagrams was about six feet long, protected by a waterproof canvas case. From the beginning it was ill-suited to railway travel. Some companies refused to carry it on passenger trains, forcing him to send it as freight. On one occasion it was delayed for almost a week, and he delivered his lectures with rough copies hurriedly drawn from memory. His account does not identify the location of that delay; it should not be combined with the Salina blackout into one disastrous evening.

The enterprise began late in 1885, when Boston's Lowell Institute invited him to give a course the following autumn and winter. After accepting, he prepared subjects he knew well: natural selection, animal and plant colors, oceans, islands, and their inhabitants. He had already lectured on some of them in Britain. Now he made new diagrams of variation and obtained slides colored from nature to illustrate coloration and mimicry.

There were eight lectures. Instead of repeating a single startling conclusion, the course moved from question to question. Why did animals have particular colors? Why did an island possess certain organisms and lack others? How could its past leave traces observable in the present? These materials subsequently formed the groundwork for his book Darwinism.

Before leaving, he tried the lecture on Darwinism before the Essex Field Club to see how an informed audience responded to the diagrams. Preparing a lecture involved more than arranging what one knew. The lecturer needed to discover whether listeners could follow that arrangement. Fairly satisfied with the trial, Wallace took his materials on the road.

He left London on October 9, 1886. To obtain a cabin to himself at a moderate price, he chose a comparatively slow steamer. The passage was uncomfortable. By the time he reached New York on October 23, he was reconsidering an even larger itinerary: crossing the Pacific, lecturing in New Zealand and Australia, and perhaps returning through South Africa. His recent experience at sea made further extended voyages less attractive.

New York offered an immediate lesson in expenses: two dollars for a cab to a hotel less than a mile away. The next day he moved to an acquaintance's house and met Henry George, then campaigning for mayor. Wallace had thought deeply about land and social questions and spoke briefly at one of George's meetings. He felt that he had made little impression. Scientific distinction did not automatically produce persuasive power in every setting.

He reached Boston on October 28, in time to prepare for the first lecture on November 1. At the Quincy House he paid three dollars a day. Scientific friends recommended a better hotel, but Wallace saw little advantage in paying four or five dollars for accommodation he considered no better. He stayed. In a letter to his daughter he described the remarkable variety of food, brought in small dishes and arranged around a guest's plate.

He had to be both an invited British naturalist and a traveler calculating the price of a room or carriage ride. A lecture tour was not an uninterrupted awards ceremony. It consisted of hotel bills, tickets, meals, luggage, and engagements. If those engagements failed to materialize, even an excellent manuscript could not arrange the next stop.

The first lecture nevertheless went very well. A crowded audience listened attentively as he explained natural selection. The following day's press praised the clarity and compactness of his presentation. Though he was not an orator, his straightforward manner attracted notice. Wallace later included one favorable review in his autobiography. It records praise he valued, not the judgment of every American listener.

Between lectures in Boston, he visited museums and libraries and met local scholars. Asa Gray invited him to dinner with Harvard biologists. Afterward Gray asked how he had arrived at natural selection, and discussion followed. Wallace had come with his own diagrams to teach, but was also entering an established American scientific network.

Such exchanges sometimes required an unprepared response. During a scientific meeting about geographical distribution, Gray unexpectedly called on him. Initially taken aback, Wallace turned to seed dispersal and island plants. He brought a familiar problem into an exchange with colleagues. This was not one of his eight prepared lectures but an answer to a subject raised in the room.

On November 19, at Williams College in northwestern Massachusetts, another practical problem arose. The projector was too poor to display his carefully colored slides properly during a lecture on animal coloration. A favorable reception did not mean the tools of communication had conveyed everything. Examples selected from nature still had to pass through a lamp, a lens, and an image before reaching the audience.

The next day a professor drove him to a nearby waterfall. Wallace collected local ferns and sent them home; some survived in his garden for many years. The tour had not turned him into somebody interested only in lecture halls. Between engagements he continued observing plants and bringing the journey into his own life.

At Vassar College he examined student accommodation, laboratories, museum collections, and astronomical equipment. Natural science there was not taught solely through verbal explanation: students could work experimentally. He lectured on oceanic islands. Then he had to move on again, rising early the next morning to catch a train through New York to Baltimore and speak in another city.

Good reviews, however, did not turn automatically into further invitations. Back in Boston in December, he found that his agent had secured no more engagements. With one exception, he had virtually no lectures for a substantial period afterward. Wallace could not understand why apparently successful appearances had produced so little additional demand.

Friends later suggested that the same agent had already promoted another British naturalist's tour, leaving audiences less eager for a second “great English naturalist.” Wallace also wondered whether his agent was ineffective or his own name insufficiently known in America. These were explanations offered to him or considered by him. They do not establish the motives of every institution that issued no invitation.

He spent part of the winter in Washington, visiting scientific acquaintances, reading, exchanging ideas, and waiting for arrangements. What he had imagined as a continuous tour became a journey with interruptions. As new engagements appeared in spring, he continued through the central and western United States.

In May 1887, a college in Manhattan, Kansas, invited him to lecture. He went to arrange his diagrams, and his hosts promptly showed him around. Classrooms, students' work, kitchens, storerooms, workshops, livestock buildings, gardens, and a nursery all seemed to require his attention. The nursery particularly interested him. The college's knowledge appeared not only in books but in cultivation and practical labor.

On May 11 he reached Salina, staying at the hotel used by his host, Colonel Phillips. Seeking a projector, they tried a druggist, a Masonic hall, and two recently established educational institutions. The schools did not possess the equipment. At last they found an ordinary magic lantern at Mr. Chapman's, capable of throwing an image only about four feet across.

That was the lamp which failed in the middle of the lecture. Praise from Boston, carefully prepared diagrams, and a reputation carried across the Atlantic could not guarantee that an oil lamp would keep burning. Wallace could continue with his voice until the pictures returned. His ideas reached new listeners through these unceremonious practical arrangements as well as through formal argument.

Near Salina he also visited a French farmer who studied mosses. The man was away, but his wife showed them a little pile of stones with tiny mosses growing on its shaded side. They later met him returning home. Conversation was difficult: his English was limited, and Wallace's party spoke little French. The farmer valued his discoveries and complained that other botanists had not responded adequately to them.

Here was another encounter with knowledge on the American journey. There was no grand hall, excellent equipment, or easy common language, but there was a small patch of ground somebody had observed closely. Wallace preserved both the farmer's frustration and the mosses on the stones. The celebrated visiting scholar was not the only person along the route looking carefully at nature.

Farther west, he met his brother John in San Francisco after many years apart. People attended the scientific lectures arranged there, but not every appearance filled a hall. In Stockton, where John lived, Wallace combined natural selection and oceanic islands in one lecture and still attracted only a small audience. Praise in the newspapers could not erase differences between towns.

The journey also contained something less easily accommodated within a tidy portrait of a scientist. Wallace publicly lectured on spiritualism. His San Francisco appearance on that subject attracted more people and yielded a larger net return than any single scientific lecture he gave in America. This belongs to the history of his personal beliefs and contemporary public interests. His standing as a co-discoverer of natural selection does not turn spiritualism into established scientific fact.

The lectures he carried to America later entered a book. His diagrams had meanwhile been delayed by railways and weakened by inadequate illumination. The surviving story includes applause for ideas, but also a man repeatedly finding equipment, rearranging journeys, facing empty stretches in his calendar, and noticing plants and other people's work beyond the platform. When the lamp failed, he kept speaking. The long American tour continued in much the same way, one stop after another.

Sources and editorial notes

1. Primary text read: Alfred Russel Wallace, My Life: A Record of Events and Opinions (London: Chapman & Hall, 1905), volume II, original printed pages 105–106 (preparation and six-foot package), 107–116 (arrival, Boston, eastern colleges, interrupted bookings), 152–155 (Manhattan and Salina, Kansas), and 158–160 (California lectures). These printed-page markers are present in the Wallace Online transcription and were consulted. https://wallace-online.org/content/contentblock?basepage=1&itemID=S729.2&viewtype=text . The source is the 1905 memoir transcription, not an examination of the original 1886–1887 travel diaries or all contemporary newspapers. 2. Version limits: Press praise, family letters, the farmer's complaint, and explanations about the agent are used as quoted or reported in Wallace's memoir. They are not counted as separately examined witnesses. The week-long delay of diagrams and the Salina lamp failure are separate incidents; the first is not localized in the passage. The Salina lecture took place during his May 11–18, 1887 stay; no exact lecture date is invented. Manhattan here is the Kansas city, not the New York borough. 3. Fact and opinion: The narrative does not reproduce the memoir's period generalizations about Indigenous people, racial hierarchy, social development, or geological causes. Spiritualist lecturing is a historical activity, not validation of supernatural claims. Sensory details, motives, and circumstances are limited to those supported by the source; no dialogue has been invented. Six feet and four feet retain the original approximate character. 4. Identity and rights: Wallace was a British naturalist, included because of his documented 1886–1887 American lecture tour, not reclassified as American. The 1905 English text is public domain. Both language versions are original contemporary narratives, without reproduction of protected modern translations, annotations, or images. Prepared by Clio Walker with AI assistance and source checking.