Many people imagine toad medicine as an ancient tradition. Its real origin is much more recent: a short pamphlet written in 1983 by a Texas activist and student, published under a pen name in 1984, and handed out at Rainbow Gatherings. This page summarizes that pamphlet and the expanded edition that finally told its author's story.

At a glance

Title: Bufo alvarius: The Psychedelic Toad of the Sonoran Desert
Author: Ken Nelson (1954-2019), writing as Albert Most
Published: 1984, Venom Press, Denton, Texas (written in 1983)
Expanded edition: Venom Press, with a preface and afterword by Hamilton Morris, published after Nelson's identity became public
Length: a short pamphlet
Best for: understanding where the modern toad practice actually comes from
Reputation note: an important historical document. It is also a 1980s how-to, and its collection and smoking instructions should not be treated as guidance.

Who wrote it

For decades "Albert Most" was a mystery. The expanded edition reveals him as Ken Nelson, an environmentalist, anti-nuclear activist, artist and independent researcher from Denton, Texas. In the early 1980s, while in the US Army Rangers in Georgia, he read a 1981 Omni magazine article about a hypothesis that ancient Cherokee people near Franklin, North Carolina, had used toads psychoactively. (That hypothesis was later refuted. In 2014 an archaeologist argued the toad bones in question pointed to cooking, not ritual.)

Intrigued, Nelson left the army, went back to Texas and studied toad chemistry at the University of North Texas. He found the work of Italian toxicologist Vittorio Erspamer, whose analysis of around forty toad species showed that only one, Bufo alvarius, produces 5-MeO-DMT. At the time, 5-MeO-DMT was almost unknown in psychedelic circles outside a few chemical suppliers who sold the synthetic compound.

In the summer monsoon of 1983, Nelson travelled to Gila, Arizona, gathered secretion and smoked it. According to the expanded edition, all known evidence points to him being the first person ever to do so. He wrote the pamphlet as coursework for a technical writing class, a friend named Gail Patterson drew the illustrations, and a few friends helped hand it out at Rainbow Gatherings and underground events. Then he stepped back from public view.

Nelson kept his identity secret until shortly before he died of Parkinson's disease in 2019. In the meantime, others took credit for his work and the toad practice grew into an industry. He came forward because he was worried about that misrepresentation and about what toad harvesting was doing to the species.

The short version

The pamphlet has two parts. Part One is a natural history of the Sonoran Desert toad and its secretion. Part Two is a practical guide to collecting secretion and smoking it. That second part is the seed of the modern "toad medicine" practice, and it isn't summarized here. The expanded edition adds Nelson's story and, crucially, his later wishes for the toad.

Section-by-section summary

Preface to the expanded edition (Hamilton Morris)

Morris tells the story above: the Omni article, the refuted Cherokee hypothesis, Erspamer's chemistry, the 1983 trip to Arizona, the technical writing class, and Nelson's decades of anonymity. His key historical point is that Nelson didn't uncover an old practice. Inspired by the idea of a psychedelic toad and finding no evidence that anyone had ever used Bufo alvarius this way, he set out to understand a practice that he in fact created. The edition was made to honor his contribution and his concern for the toad's survival.

Part One: the toad and its secretion

Nelson introduces the Sonoran Desert, a 120,000-square-mile region stretching from southeastern California across southern Arizona into Sonora, Mexico, where summer heat can be extreme and rainfall scarce. Bufo alvarius (now classified as Incilius alvarius) is unusual: it lives only in the Sonoran Desert and is semi-aquatic, so it depends on reliable water near rivers and streams.

He notes an irony of human history. More than a thousand years ago, the Hohokam people dug irrigation canals from the Gila River, and those canals, expanded over centuries, now water a huge area of farmland. That human-made wetland gave the toad a lasting niche.

He describes the toad's life. It's nocturnal and spends hot days underground, emerging at dusk near water, irrigated fields and rain pools. It's most active in the May to July breeding season. It's the largest native toad in North America, with a squat body, broad flat head, leathery skin that ranges from dark brown to olive green, and a cream-colored belly. Its most distinctive features are its large glands: a pair of kidney-shaped glands on the neck, plus glands on the thighs, lower legs and forearms. Each gland is made of many tiny lobules that release a milky secretion. Nelson explains that the toad's chemistry is unique in the animal kingdom for the amount of 5-methoxy compounds it makes, and that 5-MeO-DMT is the main active compound in the dried secretion.

Part Two: collecting and smoking the secretion

This part is a step-by-step guide to collecting, drying and smoking toad secretion, written in the 1980s. It isn't summarized here, and it shouldn't be followed. It's historically important because almost every later account of toad smoking, including the books summarized on this site, traces back to it.

Ken's Wishes

This closing section of the expanded edition is the most important for anyone thinking about the toad today. Morris explains that Nelson, working without funding or a lab during the height of drug prohibition, was interested in alternatives to milking toads and in producing 5-MeO-DMT synthetically. Two pieces of evidence support this:

An unpublished sequel. The original pamphlet mentioned a follow-up, The Handbook for the Serious Toad Collector, which would have covered breeding toads in captivity. Nelson's friends told Morris he decided not to publish it because he didn't want to encourage further destructive interference with wild toad populations.
Plans for lab production. Nelson left extensive plans for producing 5-MeO-DMT in bioreactors using the same natural enzymes the toad uses. He never got to test them, but Morris calls the idea well ahead of its time.

Morris adds that the toad is a tough, long-lived animal that holds a place in the traditions of the Yaqui people of Sonora, but that habitat destruction, climate change and poaching now threaten its survival.

The expanded edition also includes a later section on laboratory synthesis. It isn't summarized here.

Why this pamphlet matters

The toad practice is modern. The person who started it, by the best available evidence, did so in 1983. There's no documented ancient tradition of smoking toad secretion.
Synthetic came first. 5-MeO-DMT was first synthesized in a lab in 1936, and synthetic material was already available from suppliers when Nelson wrote his pamphlet.
The founder's own wishes. By the end of his life, the man who started toad smoking was worried about the toad and interested in lab-made alternatives. That's a striking endorsement of working with synthetic medicine.

What to read critically

It's a how-to. Part Two describes collecting and smoking secretion with no screening, no setting and no safety guidance by today's standards.
Toad welfare wasn't the focus in 1984. The original pamphlet describes gathering toads casually. Nelson's later wishes show how his own thinking changed.
The Cherokee idea that inspired it was wrong. The hypothesis that sent Nelson looking was later refuted.

Read the full text

The original 1984 pamphlet is archived free online at Erowid, and there's background on Wikipedia. Please read it as history, not instructions. The expanded edition with Ken Nelson's story and Hamilton Morris's notes is available from Venom Press.

Keep reading

Synthetic vs Toad Medicine: why the "ancient tradition" story doesn't hold up, and why synthetic is the only medicine used here
About 5-MeO-DMT: origins, including the 1936 synthesis
Tryptamine Palace: a first-person account from the generation that followed the pamphlet
All 5-MeO-DMT book summaries

This summary leaves out collection, preparation, dosing and synthesis details on purpose. It's a summary and review for educational purposes, not a substitute for the original or for medical advice.