{ "id": "gumilla-orinoco-ilustrado-1745", "type": "entity", "name": "Gumilla, El Orinoco ilustrado — the curare chapter (Madrid, 1745)", "summary": "The natural history of the Orinoco written by the Jesuit mission superior Joseph Gumilla and printed at Madrid in a revised second edition in 1745. Its twelfth chapter is the first extended European account of curare, and it gets the decisive pharmacological point right — the poison is harmless swallowed and lethal in a wound. The same volume attributes the discovery of it to the devil, on the ground that the Indians who made it lacked the judgement to.", "locale": "en", "tags": [ "medicine", "natural-history", "americas", "books", "indigenous-knowledge", "indigenous-peoples", "ethnography", "eighteenth-century", "missions", "science" ], "relations": [ { "rel": "related", "target": "quina-cascarilla-del-peru" }, { "rel": "related", "target": "monardes-historia-medicinal-1580" }, { "rel": "related", "target": "acosta-historia-natural-y-moral-1590" }, { "rel": "related", "target": "montoya-conquista-espiritual-1639" }, { "rel": "related", "target": "mutis-botanical-expedition" }, { "rel": "related", "target": "hervas-catalogo-lenguas-americanas-1800" }, { "rel": "related", "target": "descubrimiento-del-rio-de-las-amazonas" }, { "rel": "related", "target": "milicias-guaranies-de-las-misiones" }, { "rel": "related", "target": "yerbales-de-las-misiones" }, { "rel": "related", "target": "real-expedicion-de-limites-al-orinoco" }, { "rel": "related", "target": "acuna-nuevo-descubrimiento-1641" }, { "rel": "related", "target": "curare-del-orinoco" } ], "questions": [ "What is the first European description of curare?", "Who was Joseph Gumilla?", "Why is curare harmless to swallow but lethal in a wound?", "What did El Orinoco ilustrado say about the peoples of the Orinoco?", "Which nation made and traded curare on the Orinoco?" ], "claims": [ { "id": "c1", "text": "The volume is the second, revised edition. Its title page reads \"El Orinoco ilustrado, y defendido, historia natural, civil, y geographica de este gran rio, y de sus caudalosas vertientes\", written by Padre Joseph Gumilla of the Society of Jesus, missionary and superior of the missions of the Orinoco, Meta and Casanare and consultor of the Holy Tribunal of the Inquisition of Cartagena de Indias; it is the \"segunda impression, revista, y aumentada por su mismo autor, y dividida en dos partes\", Tomo Segundo, printed at Madrid by Manuel Fernandez, printer to the Supreme Council of the Inquisition, in 1745.", "sources": [ "gumilla-orinoco-ilustrado-tomo-ii-madrid-1745" ], "confidence": 0.95 }, { "id": "c2", "text": "Chapter XII is given entirely to the poison and announces itself as a manufacturing account: \"Del mortal veneno llamado Curàre. Raro modo de fabricarle, y de su instantanea actividad.\" The word curare enters European print here attached to a description of who makes it, how it is sold and what it does, rather than as a traveller's rumour.", "sources": [ "gumilla-orinoco-ilustrado-tomo-ii-madrid-1745" ], "confidence": 0.9 }, { "id": "c3", "text": "Gumilla describes a monopoly and a trade, not a curiosity. The Caverre nation alone, he writes, \"retiene el secreto, y le fabrica, y logra la renta pingue del resto de todas aquellas Naciones\" who come, directly or through third parties, to buy it; it is sold in small new clay pots holding at most four ounces; it resembles thick grape syrup in colour and has neither taste nor any special acrimony. The account is of a manufactured commodity with a single producer and a regional market.", "sources": [ "gumilla-orinoco-ilustrado-tomo-ii-madrid-1745" ], "confidence": 0.85 }, { "id": "c4", "text": "The pharmacologically decisive observation is on the page, and it is correct. Curare, Gumilla reports, may be put in the mouth and swallowed \"sin riesgo, ni peligro alguno; con tal, que ni en las encias, ni en otra parte de la boca haya herida con sangre\" — its whole activity and force, he adds, being against the blood — while a man wounded lightly with an arrow point of it, scratched no more than a pin would scratch, dies almost at once. The distinction between an inert oral dose and a lethal wound dose is exactly the property on which the later medical use of curare depends, and it is stated plainly in Madrid in 1745.", "sources": [ "gumilla-orinoco-ilustrado-tomo-ii-madrid-1745" ], "confidence": 0.85 }, { "id": "c5", "text": "The mechanism he offers for it is wrong. Gumilla explains the effect as coagulation — touching a drop of blood and the whole body's blood curdling \"con la velocidad de un rayo\" — and the marginal glosses restate it, \"Toda su acrimonia es contra la sangre\" and \"Con solo hacer un leve rasguño, quaxa la sangre de todo el cuerpo\". The observation and the explanation come apart: what he saw was reported accurately, what he inferred from it was not.", "sources": [ "gumilla-orinoco-ilustrado-tomo-ii-madrid-1745" ], "confidence": 0.85 }, { "id": "c6", "text": "The chapter denies its own informants the credit for the knowledge it records. Gumilla writes that he says it with all seriousness: comparing the hidden secrets of some poisons with \"la corta capacidad, y ninguna reflexion de aquellos incultos Indios\", he infers with sufficient ground that the knowledge and the circumstances of the whole procedure \"no son, ni pueden ser hijas de su débil juicio, ni de su tosca industria\", and that arms so deadly come instead from the implacable rage of the common enemy of mankind. The margin states the conclusion without hedging: \"Es de creer, q el demonio les manifestó los venenos.\" A working pharmacology is transmitted to Europe and attributed to the devil on the same page.", "sources": [ "gumilla-orinoco-ilustrado-tomo-ii-madrid-1745" ], "confidence": 0.9 }, { "id": "c7", "text": "That judgement is not an aside in the curare chapter but the frame of the volume. On its fourth page Gumilla writes that if the likeness to brutes belongs with special force to Mahometans, pagans and \"Negros Africanos\" by reason of their particular ignorance, it belongs no less to the \"ciegas, y barbaras gentes del Orinoco\" and to many other nations \"de las dos Americas, por su natural estolidèz, y barbaridad\"; the margin reads \"Ceguedad grande de los Indios Gentiles\". The book that carried curare into European libraries carried this with it.", "sources": [ "gumilla-orinoco-ilustrado-tomo-ii-madrid-1745" ], "confidence": 0.9 }, { "id": "c8", "text": "The author's position bears on how the book should be read. Gumilla wrote as superior of the Orinoco, Meta and Casanare missions and as calificador and consultor of the Inquisition of Cartagena de Indias, and the title itself says the Orinoco is being \"defendido\" as well as described. He is an excellent witness to what he handled and watched on the river, and an interested one as to the merits of the mission enterprise and the capacities of the people it governed. This corpus keeps the two apart rather than taking the volume whole.", "sources": [ "gumilla-orinoco-ilustrado-tomo-ii-madrid-1745" ], "confidence": 0.85 } ], "takeaways": [ "Curare enters European print in 1745 with a manufacturing and trade account, not a rumour — one producer nation, clay pots of four ounces, a regional market.", "Gumilla records the property that later made curare medically usable — inert when swallowed, lethal in a bleeding wound — and states it unambiguously.", "His explanation of that property, coagulation of the blood, is wrong; the observation and the theory have to be separated to use the source at all.", "The same chapter denies the Caverre the credit: their knowledge, it argues, cannot be the daughter of their judgement, so the devil must have shown them the poisons.", "The volume's fourth page extends a comparison with brutes to the peoples of the Orinoco and of both Americas, which is the frame the pharmacology arrives inside." ], "faqs": [], "evidence_tier": "primary", "evidence": { "level": "industry_observation", "source_types": [ "paper" ] }, "moat_flag": false, "winning_edge": "Curare's history is usually told forward from Waterton in the 1810s or from Claude Bernard in the 1840s, with Gumilla reduced to a footnote date. What the footnote leaves out is the content that makes the 1745 chapter worth citing: that it describes a monopoly and a market rather than a marvel, that it states the oral-inert and wound-lethal distinction on which every later medical use rests, and that it gets the mechanism wrong in a way a reader has to know about. It also leaves out the cost, which is on the same pages — the knowledge is taken and the people it was taken from are declared incapable of having produced it. All of it is transcribed here from the Madrid 1745 sheets, so the achievement and the contempt are cited from one document rather than from two opposed literatures.", "confidence": 0.85, "last_verified": "2026-08-11", "canonical_url": "https://hispanic-legacy.com/k/gumilla-orinoco-ilustrado-1745", "api_url": "https://hispanic-legacy.com/api/k/gumilla-orinoco-ilustrado-1745.json", "jsonld": { "@context": "https://schema.org", "name": "Gumilla, El Orinoco ilustrado — the curare chapter (Madrid, 1745)", "description": "The natural history of the Orinoco written by the Jesuit mission superior Joseph Gumilla and printed at Madrid in a revised second edition in 1745. Its twelfth chapter is the first extended European account of curare, and it gets the decisive pharmacological point right — the poison is harmless swallowed and lethal in a wound. The same volume attributes the discovery of it to the devil, on the ground that the Indians who made it lacked the judgement to.", "url": "https://hispanic-legacy.com/k/gumilla-orinoco-ilustrado-1745", "license": "https://spdx.org/licenses/CC-BY-4.0.html", "dateModified": "2026-08-11", "citation": [ { "@type": "CreativeWork", "name": "El Orinoco ilustrado, y defendido, historia natural, civil, y geographica de este gran rio, y de sus caudalosas vertientes. Tomo Segundo", "url": "https://books.google.com/books?id=sQzTJKx8YO0C&pg=PP7" } ], "@type": "Article", "headline": "Gumilla, El Orinoco ilustrado — the curare chapter (Madrid, 1745)" } }