Share this article on:

Elton Romeo Smilie, the Not-Quite Discoverer of Ether Anesthesia

Stone, Martha E. MS*; Meyer, Marlene R. MD, JD, LLM; Alston, Theodore A. MD, PhD

doi: 10.1213/ane.0b013e3181af7f9a
General Articles: Special Article

Like William T.G. Morton, Elton Romeo Smilie (1819–1889) was raised in Massachusetts, attended medical school in New England, practiced dentistry there, strove for clinical invention, and moved to Boston. In October 1846, both announced that inhaled ethereal preparations achieved reversible insensibility in surgical patients. Smilie published a report in the Boston Med Surg J 3 wk before Bigelow used that forum to broadcast Morton's Ether Day. Smilie's preparation was an ethereal tincture of opium, and, as he mistakenly believed the opium to be volatile and important, he ceded priority to Morton for ether anesthesia. The two authors collaborated on chloroform, but Smilie soon headed off in the Gold Rush to California. It is tempting to speculate that Charles T. Jackson and Morton were indebted in part to Smilie.

Published ahead of print August 27, 2009 Supplemental Digital Content is available in the text.

From the *Treadwell Library, and †Department of Anesthesia and Critical Care, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.

Accepted for publication April 17, 2009.

Published ahead of print August 27, 2009

Address correspondence and reprint requests to Theodore Alston, MD, PhD, Department of Anesthesia and Critical Care, Massachusetts General Hospital, 55 Fruit St., Boston, MA 02114. Address e-mail to

“Ether Day” at the Massachusetts General Hospital is officially October 16 when, in 1846, William T.G. Morton administered inhaled “Letheon” to a patient of surgeon John C. Warren.1 An alternative anniversary date, November 7, was the day that Morton revealed to Warren that the only active ingredient of Letheon was diethyl ether.2 “Beating his professor into print,” 28-year-old Bigelow3 published an account of October 16 in the Boston Med Surg J on November 18. Warren's own article appeared on December 9.4

Before both of those articles, another Boston surgeon independently published his own work on inhaled ether in the same journal on October 28.1,5 The letter came from Elton Romeo Smilie. Smilie came close to the discovery of inhaled ether for surgery, but he did not quite do so. He interestingly timed but misinterpreted that ether experiment is fascinating in the history of medical science. Unfortunately, little information has been collected about the person. McMechan6 pointed out this historical omission in 1915 in a letter requesting information about Smilie from Boston Med Surg J. Unfortunately, the response was only a reprint of Smilie's letter of 1846. The first historian to report investigation into Smilie's biography was probably Wolfe1 in 2001.

Smilie obtained excellent surgical insensibility in patients by having them supposedly inhale opium. Although opium can be smoked, its pharmacological components are not volatile at room temperature or slightly higher. He mistakenly believed that he rendered the opium volatile by mixing it with a volatile liquid. The liquid he chose was diethyl ether. He published his experiences with inhaled ethereal tincture of opium without testing the diethyl ether alone. A controlled experiment would have changed the history of anesthesia.

It is interesting to wonder who might have known of Smilie's work before its publication. Warren, for instance, had previously been the editor of the journal. However, it is unlikely that Warren had been tipped off about ether because of Smilie. If anything, Smilie's article may have helped Morton to inadvertently conceal the active ingredient of Letheon from Warren.2 That is, Smilie's report suggested that additives were also required for Morton's ethereal nostrum to work.

Back to Top | Article Outline


He was born in Wakefield, Massachusetts, to John and Priscilla Smilie on August 17, 1819, the same year that Morton was born 60 miles away.7 In 1842, he received the degree of Doctor in Medicine from Vermont's Castleton Medical College, one of the largest American medical schools of the mid-1800s. Tooth extraction was the most common surgical procedure at that time, and his dissertation was entitled “Structure and Diseases of the Teeth.”8 He started his practice in Derry, New Hampshire, hometown of his wife, Mary Ann Hall9 and quickly established a reputation for creativity.10–27

In his first article on ether, a “cold ethereal solution of opium” was placed in a glass retort.5 “Moderate heat” was applied to cause “slow evaporation,” “the patient being permitted to breathe the gaseous vapor from an elastic tube fixed to the mouth of the retort.” The surgeries were not specified, but “there was an entire absence of symptoms induced by pain, and those which usually result from the excessive use of opium.” The onset was instantaneous, and ether was, beyond doubt, the best vehicle for the introduction of opium into the system. Somehow, “the dose depends on the judgment of the physician.” As ether boils at 35°C, warming the ether produced a potentially high dose of ether vapor.

Smilie made three incorrect assumptions. The first was that narcotic components of opium are soluble in ether. The second was that dissolved opium would vaporize when its solvent vaporized and thus be contained in the fumes of diethyl ether. The third, and most important, was that the intended carrier vapor had no intoxicating properties. Contrary information was available at the time of Smilie's experiments. It was known that the two most abundant alkaloids of opium are morphine and narcotine. Both were extractable into water, from which nonvolatile morphine had been crystallized. When opium was mixed with ether, the ether took up narcotine but not morphine.28 Despite its name, narcotine (now called noscapine) is not a narcotic. Although narcotine dissolves in ether, ether does not promote the evaporation of narcotine. It was known that after ether leaves an ethereal tincture of opium, solid narcotine (melting point 176°C) remains.28

Smilie's29 second article on ether appeared on May 5, 1847, after both the Bigelow and Warren accounts of Morton's Ether Day. He ceded credit for the invention of ether anesthesia to Jackson and Morton. He wrote, “I trust that I shall not be accounted by the profession and public, one of those parasitic growths, which by extent of foliage seemingly endeavor to conceal the connection of fruit with the legitimate branch.” He explained that his independent work began in the spring of 1846, when he constructed “an instrument for inhaling medicinal vapors in pulmonary complaints.” The first patient to receive ethereal tincture of opium was a clergyman “suffering from extensive bronchial irritation.” Left alone during his treatment, the patient became unconscious and “fell upon the floor, severely injuring his head against the projecting corner of the stove.” Fortunately, the patient found the mishap “far from unpleasant.” The next patient was a young lady suffering from pain and cough due to tuberculosis. She would not relinquish the therapeutic ether inhaler to Smilie until her insensibility ensued, but then she was easily resuscitated with the aid of salts of ammonia. The third patient was deliberately rendered insensible for the draining of a large abscess involving the neck and chest.

The last paragraph of Smilie's29 note of May 1847 is unclear. After giving ether to “hundreds of patients,” he said that he suspended his ether experiments until August 1846. He and his consultants arbitrarily feared that the tincture was potentially injurious, perhaps because of the possibility of opium-induced apnea. He resumed the administration of the drug “with the assurance guaranteed by the experiments of Dr. Morton.” Thus, there is a suggestion that Smilie and Morton communicated about ether in August before Ether Day in October 1846.

Smilie30 reiterated his concession of the invention of ether anesthesia to Jackson and Morton in a lecture to his medical school. However, not everyone felt that the concession was entirely fair. For instance, Flagg,31 a student of Warren, argued strenuously against the Morton-Jackson legal patent on ether anesthesia. He said that it was like a patent on sunlight and pointed out that Smilie had demonstrated the power of Morton's supposedly “new gas.” (Interestingly, Flagg mentioned that he himself had given ether as an oral or inhaled drug to “hundreds” of patients, although he did not claim its use as an aid to surgery.) Dr. John Clough of Boston was compelled to write that Smilie had told him, in the spring of 1846, about insensibility from inhaled ethereal tincture. According to Clough,32 “It is true that Dr. S. had used the ether, to be inhaled, for some purposes, and had suggested the use of it in the same way for overcoming pain while dental operations were being performed, before it was made public by Dr. Morton.” An anonymous note signed by “Justice” chided Bigelow for claiming the first public article on etherization. Justice credited Smilie and mentioned that Smilie's article of October 28, 1846, had been reprinted in the Edinburgh Med Surg J.33

Smilie remained on friendly terms with Morton, and he helped Morton to examine chloroform anesthesia. Morton34 explained, “ . . . being out of health myself, I called upon Dr. E. R. Smilie, a person of some reputation in chemical science, and invited him to my laboratory.” Smilie helped Morton with his first chloroform patient and then invented an improved inhaler for ether or chloroform. As described, “The mouth piece is of glass, and is connected with the receiver by a silver tube, within which are the valves that prevent the passage of the breath from the lungs into the retort, and allow of its escape.”35 “Like Connecticut washing machines,” there was a plethora of types of chloroform inhalers put forth, but the Smilie device garnered a good review.36 Unfortunately, there is no image of Smilie's non-rebreathing valve system of 1848. The dangers of chloroform were often ascribed to impurities, so Smilie,37 having communicated with James Y. Simpson, published Simpson's recipe for a “superior article” in Boston.

Smilie enjoyed a sterling reputation. In 1849, the Philadelphia College of Medicine conferred on him the courtesy (ad eundem) degree of Doctor of Medicine. He was then admitted into the Massachusetts Medical Society.38

On January 30, 1850, it was announced in the Boston Med Surg J “Dr. E. R. Smilie, a frequent contributor to this Journal, who has invented several novel and approved surgical instruments, sailed from Boston to California, a few weeks since.”39 He went to the Gold Rush. His preparations included the invention of an apparatus for isolating particles of gold from sand (

Smilie wrote of dentistry and medicine while in California. One of his case reports exemplifies the California Gold Rush literary license.40 He describes a 49er whose hair turned white overnight. The man was bled for a fever and lapsed into sleep. The rapid blanching of his hair was supposedly caused by his awakening to a grizzly bear lapping up the spilled blood.

Smilie41,42 had many stories to tell, and he penned two science fantasy novels. He is considered a forerunner of H. Rider Haggard and Edgar R. Burroughs and a pioneer of the genre ( As R. Elton Smilie, he published The Manatitlans. Therein, despite dangerous ape-men and other hazards, Andean explorers discovered a lost world of ant-sized people. Next was Investigations and Experience of M. Shawtinback, at Saar Soog, Sumatra. Humans in that novel were improved surgically to a nobler state of health resembling those enjoyed in Eden. The improvement was affected by the transplantation of anatomically correct monkey tails onto the humans. The surgery required, of course, an “anesthetic.” To that end, the inventor of “ethereal tincture of opium” invented “etherial [sic] tincture of bang”42 where bang is an inebriating hemp product.

Back to Top | Article Outline


It is interesting to speculate as to who read the Smilie's article on ether before its publication. Warren was the inaugural editor of the first incarnation of the journal. In 1846, the editor was Jerome V.C. Smith. Smith had many personal connections (and went on to become the mayor of Boston). A professional chemist such as Jackson should have seen Smilie's misinterpretation at a glance. Whether or not Smilie's manuscript tipped off the producers of Ether Day, his publications show that ether anesthesia was about to happen anyway. The other pioneers of inhaled anesthesia were colorful characters, and Smilie certainly shared that characteristic. Alas, no visual image of the person seems to have been preserved.

William Clarke used ether for dental extraction before Morton,43 Crawford Long used ether for surgery before Morton, and Smilie published before Morton. Alas, Clarke and Long did not publish before Ether Day, and Smilie did not quite get the idea correctly.

Back to Top | Article Outline


The Boston Med Surg J was electronically provided by Harvard University. Historical journals and books were electronically available at or otherwise available online. Reviewer comments and discussions with Prof. Carl Rosow are much appreciated.

Back to Top | Article Outline


1. Wolfe RJ. Tarnished idol: William Thomas Green Morton and the introduction of surgical anesthesia: a chronicle of the ether controversy. Novato, CA: Norman Publishing, 2001:187–8
2. Moore FD. John Collins Warren and his act of conscience: a brief narrative of the trial and triumph of a great surgeon. Ann Surg 1999;229:187–96
3. Bigelow HJ. Insensibility during surgical operations induced by inhalation. Boston Med Surg J 1846;35:309–17
4. Warren JC. Inhalation of ethereal vapor for the prevention of pain in surgical operations. Boston Med Surg J 1846;35:376–9
5. Smilie ER. Insensibility produced by the inhalation of the ethereal solution of opium. Boston Med Surg J 1846;35:263–4
6. McMechan FH. An early investigator in anesthesia. Boston Med Surg J 1915;172:239
7. Baldwin TW. Vital records of Wakefield Massachusetts, to the year 1850. Boston: Wright and Potter Printing Co., 1912:107
8. Medical degrees at Castleton Medical College. Boston Med Surg J 1842;27:289
9. Annis DG. Vital records of Londonderry New Hampshire. Manchester, NH: John B. Clarke Co., 1914:254
10. Suture needle. Boston Med Surg J 1844;30:146
11. Cleft palate. Boston Med Surg J 1845;32:305
12. Suture needle. Boston Med Surg J 1849;40:385
13. Smilie ER. Shoulder supporter. Boston Med Surg J 1844;30:221–2
14. Bladin PF. A seton tried in the back of the neck: chronic suppuration in the treatment of epilepsy. J Clin Neurosci 1998;5:17–9
15. Seton needle. Boston Med Surg J 1844;30:265
16. Dr. Smilie's seton needle. Boston Med Surg J 1849;40:11
17. Smilie ER. Treatment of piles. Boston Med Surg J 1844;31:40
18. Smilie ER. Improved suture. Boston Med Surg J 1844;31:122
19. Keeping fresh wounds in apposition. Boston Med Surg J 1844;31:167
20. Revolving gum lancet. Boston Med Surg J 1844;31:145
21. Smilie ER. Artificial petrifaction—experiments. Boston Med Surg J 1845;32:479–80
22. Smilie ER. Public hygiene. Boston Med Surg J 1849;41:421–2
23. Smilie ER. Antiseptic composition. Eclectic Med J 1860;19:80
24. Smilie ER. New obstetrical forceps. Boston Med Surg J 1845;33:146–7
25. Smilie ER. Tooth extractor—a new instrument. Boston Med Surg J 1846;34:80–1
26. New tooth instrument. Boston Med Surg J 1846;34:125
27. Ear-trumpets. Boston Med Surg J 1850;41:485
28. Gully JA. Extract of opium deprived of narcotine. In: A formulary for the preparation and medical administration of certain new remedies. Ed. Gully JA. London: John Churchill, 1836:32–3
29. Smilie ER. Inhalation of the ethereal tincture of opium. Boston Med Surg J 1847;36:281–2
30. Smilie ER. An address, delivered before the class of the Castleton Medical College, on the history of the original application of anaesthetic agents, May 17, 1848. Boston: Stacy, Richardson and Co., 1848:1–23, 31
31. Flagg JF. The inhalation of an ethereal vapor to prevent sensibility to pain during surgical operations. Boston Med Surg J 1846:35:356–9
32. Clough J. Ethereal tincture of opium. Boston Med Surg J 1847;36:406–7
33. Justice. Boston Med Surg J 1848;38:290
34. Morton WTG. Result of experiments in Boston with chloroform. Boston Med Surg J 1847;37:447
35. Dr. Smilie's improved instrument for inhaling chloroform or ether. Boston Med Surg J 1848;38:26–7
36. Chloroform inhalers. Boston Med Surg J 1848;38:65
37. Smilie ER. Prof. Simpson's process of purifying chloroform. Boston Med Surg J 1848;38:86–7
38. Philadelphia College of Med. Boston Med Surg J 1849;40:126
39. Medical miscellany. Boston Med Surg J 1850;41:527
40. Smilie ER. Blanched hair from sudden emotions. Boston Med Surg J 1851;44:438–40
41. Smile RE [Smilie ER]. The manatitlans; or a record of scientific explorations in the Andean La Plata, S.A. Buenos Ayres: Imprenta de Razon 1877;1–478
42. Smilie ER. Investigations and experience of M. Shawtinback, at Saar Soog, Sumatra: a ret or sequel to “The manatitlans.” San Francisco: Joseph Winterburn and Co., 1879;1–263
43. Keys TE. The history of surgical anesthesia. Park Ridge, IL: Wood Library-Museum of Anesthesiology, 1996;21–2
© 2010 International Anesthesia Research Society