by Mary Roach
La Peyronie found confirmation of his conclusions in three patients who had lost consciousness and died following head injuries and then been found during autopsy to have abscesses in the vicinity of the corpus callosum. One of the abscess pockets, that of a soldier whose horse had kicked him, was here again described as being “of the size and shape of a hen’s egg”—clearly the “bigger-than-a-breadbox” of its day.
Autopsies also enabled La Peyronie to rule out Descartes’s competing claim that the soul hung its hat in the pineal gland. La Peyronie had autopsied patients discovered to be missing the gland entirely or in whom it appeared to have petrified. “Elle ne réside pas dans la glande pinéale,” he declared. I find a certain arrogance suffuses both La Peyronie’s writing and his deeds. If only he could know that today, as regards historic Frenchmen known to Americans, La Peyronie doesn’t hold a flame to Le Petomane,* the Moulin Rouge “fartiste,” whom no one should hold a flame to anyway.
La Peyronie was the last of a breed—a lone holdout in the anatomical search for the soul. Most of the early neuroanatomists had come to see that the self was too complex, too multifaceted, to be housed in or operated by a single biological entity. Like the Soviet Union after Gorbachev, the once broad and uniform-seeming soul began to splinter into dozens of smaller republics. Through a combination of unpleasant and often contradictory animal studies—living brains pokered, ablated, and hacked—and autopsy studies that sought to match brain abnormalities with dominant personality features, the men of science began mapping the specialized duties of the brain’s real estate, a project that continues to this day.
Of all the brain’s early cartographers, none was quite so thorough as Viennese physician Franz Joseph Gall. Gall claimed to have located twenty-seven distinct “organs” of the human brain, each corresponding to a specific trait or faculty. By all accounts a gifted physician and anatomist, Gall succeeded in pinpointing the brain’s language center and that of our memory for words. His other “organs” were rather more questionable. For instance: The Organ of Poetical Talent. The Organ of Metaphysics. And, my personal favorite: The Organ for the Instinct for Property-Owning and Stocking Up on Food. Gall’s organs landed him in hot water with the church, which labeled him a heretic for teaching that man had multiple souls, a charge Gall denied.
Gall was led astray in part by his unconventional methodology. The swift decomposition of brains precluded their lengthy study, so Gall took to examining skulls, both of the living and the dead. He reasoned that if an organ of the brain was particularly well developed, it would put pressure upon the cranium and raise a bump that could be seen or felt through the hair. (Phrenology—a mass-market popularization of his theories—had the masses feeling each other’s heads and galling Gall for decades to follow.) Gall amassed a collection of 221 skulls, which traveled with him on his lecture circuit, exasperating porters and alarming nosy bellhops. He also owned, at last count, 102 plaster casts of human heads, many of which he’d made himself. The heads were casts of people he met in his travels whose character seemed obviously dominated by one or two strong traits and whose skull bore a bulge in the appropriate spot: evidence for his theories. Skull #5491, for instance, belonged to a Mr. Weilamann, the director of a portable hydrogen gas generator* company, and showed a notable bump over the Organ for Mechanical Sense, Construction, and Architecture.
Gall was quite devoted to his collection. To track down examples of the Organ of the Penchant for Murder and Carnivorousness, for instance, he took to wandering through prisons, looking for murderers with ridges above the ears. Lunatic asylums were another fruitful stop for Gall and his plaster craft. The catalogue of Gall’s collection contains dozens of items like #5494: “Copy in plaster of the skull of a total idiot.”*
For the Organ of Poetical Talent, Gall resorted to fondling marble busts of the great poets. As evidence for the location of the Organ of Belief in the Existence of God, he cites a series of Raphael paintings in which Christ appears to have a noticeable rise at the crest of his cranium, as though Satan had bopped him over the head with his trident. Had Gall gone potty? Possibly. Here is his evidence for the Organ of the Instinct of Propagation. He knew of a young clockmaker who, when he “ejaculated by onanism,” would lose consciousness for an instant and suffer convulsive movements of the head and a violent pain in the back of the neck. “The idea couldn’t escape me,” writes Gall in Sur les fonctions du cerveau, “that there must be a connection between the functions of physical love and the cerebral parts in the nape of the neck.” Then again, perhaps there is a connection between violent convulsive head movements and neck pain.
As further evidence for the Organ of the Instinct of Propagation, Gall cites a young widow who admitted that since childhood she had felt “strong desires that were impossible to resist” and during these moments the nape of her neck burned. Gall describes placing his hand on her young widowly nape during one of these burning-desire episodes and discovering “a very considerable rounded prominence,” possibly one of several going on in the room.
Item #19.216 of the Gall collection is the skull of Franz Joseph Gall. Gall disciple N. J. Ottin notes that “on the occiput, the tendency toward sex was very marked.”
From Gall’s day onward, the soul began to drift away from the provinces of anatomy and neurology and off into airier domains: religion, philosophy, parapsychology. The men of medicine were through with the soul—with one terrifically odd exception.
*There’s a good chance you underestimate almost everything about the sea urchin. For instance, the Encyclopædia Britannica tells us some sea urchins use their little sucker-tipped feet to hold pieces of seaweed over their heads like parasols, for shade. Plus, they have teeth that can drill into rock and excavate entire living rooms for their owners. The teeth are hard to see, because sea urchins sit on their mouths; possibly they are self-conscious about their “complex dental apparatus called Aristotle’s lantern.” One type has spines that can be used as pencils, though not, disappointingly, by the urchin itself.
*Zimmer’s book is about the dawn of neuroscience: the first men to open up heads and figure out how brains worked. Zimmer once edited a story of mine for Discover, a situation from which he’s probably still recuperating. The guy is smarter than anyone I know. If you were to open up his head, his brain would burst out like an airbag.
*My disappointment was short-lived, for this was a wondrous book. Here were detailed rabbinical opinions upon “whether or not a cattle breeder whose animal caused damage by knocking something with its penis must make restitution” (undecided); upon the inadmissibility of cleansing the anus “with the snout of a dog”; upon “the misconduct in which a woman places into the vagina of another woman a piece of meat from a fallen animal.” Here were descriptions of “hairy heart” and treatments for chronic uterine bleeding (“take three measures of Persian onions, boil them in wine, make her drink it and say to her, ‘Cease your discharge!’ ”).
†A rather barren place, from what I gather. Egyptians made frequent trips to the family plot to supply departed souls with food, clothing, and kitchen items. According to Clara Pinto-Correia, some tombs were even outfitted with toilet facilities for the ka (soul). That No. 2 carries over into the afterlife was apparently a common belief. Correia cites a reference to a funerary fragment expressing anxiety over the possibility that the ka, should its food cache run out, might resort to feeding on its excrement.
*I was intrigued to learn that the French for “pus”—even among members of eighteenth-century aristocracy—is “le pus.”
*I feel it would be wrong to introduce Le Petomane into a manuscript and then abandon him in the very same sentence. I had always thought that the act consisted of popular songs performed on his own wind instrument. But I learned from “The Straight Dope” columnist Cecil Adams that, in fact, Le Petomane, whose real name was Joseph Pujol, could produce only four notes without the aid of an ocarina. This is not to belittle his rectal talents. Pujol could smoke a
cigarette down to its butt (or his butt, or both) and blow out candles, as well as expel a fountain of water several feet into the air.
*In looking up “portable hydrogen gas generator” on Google, I came across a study called “Detection of Flatus Using a Portable Hydrogen Gas Analyzer,” apparently a novel use of the device. The author taped the machine’s sampling tube to twenty postoperative gastrointestinal patients’ buttocks in an effort to detect farts, a happy sign that their plumbing was back in action. Hydrogen is the main component of flatus; you and I are, in essence, hydrogen gas generators of a less portable variety.
*The terms “idiot” and “lunatic” were acceptable diagnostic terms in England up until 1959. “Imbecile” and “feeble-minded person” were, likewise, listed as official categories in the 1913 Mental Deficiency Act. England has always lagged a bit behind in discarding outdated terms for the disadvantaged. (When I was there in 1980, it was still possible to shop for used clothing at the local Spastic Shop.) That is, compared to the United States, where it takes, oh, about twenty-five minutes for a diagnostic euphemism to become a conversational faux pas.
3
How to Weigh a Soul
What happens when a man
(or a mouse, or a leech) dies on a scale
IT WAS A pretty place to die. The mansion on Blue Hill Avenue was the showpiece of the Dorchester, Massachusetts, estate known as Grove Hall. Four stories tall, with a porticoed porch and cliques of indolent shade trees, the mansion had been home to T. K. Jones, a wealthy merchant in the China trade. In 1864, it was bought by a physician-cum-faith-healer named Charles Cullis, who turned it into the Consumptives’ Home—a charitable operation for late-stage tuberculosis (a.k.a. consumption) patients. With the discovery of antibiotics sixty years off, prayer was as useful a treatment as any then on offer. TB patients were routinely packed off to sanitariums, ostensibly to partake of rest “cures,” but mainly to keep them from spreading the disease.
Had you been visiting the Consumptives’ Home in April 1901, you might have been witness to a curious undertaking. A plump, meek-looking man of thirty-four, wearing wire-frame glasses and not as much hair as he once did, was stooped over the platform of an ornate Fairbanks scale, customizing the device with wooden supports and what appeared to be an army-style cot. The scale was an oversized commercial model, for weighing silk—no doubt a holdover from Jones’s mercantile days.
Clearly something unorthodox was afoot. Though weight loss was a universal undertaking at the Consumptives’ Home, no one needed a commercial scale to track it.
The man with the hammer was Duncan Macdougall, a respected surgeon and physician who lived in a mansion of his own, in nearby Haverhill. Macdougall was acquainted with the Consumptives’ Home attending physician, but he himself was not on staff. Nor was he treating any of the patients, or even praying for them. Quite the opposite; Macdougall was literally—perhaps even a little eagerly—waiting for them to die.
For the preceding four years of his life, Duncan Macdougall had been hatching a plan to prove the existence of the human soul. If, as most religions held, people leave their bodies behind at death and persist in the form of a soul, then mustn’t this soul occupy space? “It is unthinkable,” wrote Macdougall, “that personality and consciousness can be attributes of that which does not occupy space.” And if they occupy space, he reasoned, they must have weight. “The question arose in my mind: Why not weigh a man at the very moment of death?” If the beam moved, and the body lost even a fraction of an ounce, he theorized, that loss might represent the soul’s departure.
Macdougall enlisted the help of two fellow physicians, Drs. Sproull and Grant, who chose not—or possibly weren’t invited—to put their names on the research paper. The plan was to install a cot on the scale platform and then install a dying consumptive on the cot. Death from consumption is a still, quiet affair, and so it fit Macdougall’s conditions “to a nicety,” as he put it. “A consumptive dying after a long illness wasting his energies, dies with scarcely a movement to disturb the beam, their bodies are also very light, and we can be forewarned for hours that a consumptive is dying.” I found his enthusiasm at once endearing and a little troubling. I imagined him addressing the ward as he canvassed for volunteers. (Macdougall wrote in the Journal of the American Society for Psychical Research that he secured his subjects’ consent some weeks before their deaths.) You people are just perfect for this project. A, You’re easy to lift, B, you’re practically comatose when you go…. Who knows what the consumptives made of it, or whether they were too out of it to know what he was asking.
At 5:30 p.m. on April 10, 1901, Patient 1’s death—“my opportunity,” Macdougall called it—was declared imminent. A male of ordinary build and “standard American temperament,” he was wheeled from the ward and lifted onto the scale like a depleted bolt of silk. Macdougall summoned his partners. For three hours and forty minutes, the physicians watched the man fade. In place of the more usual bedside attitudes of grief and pity, the men assumed an air of breathless, intent expectancy. I imagine you see this on the faces of NASA engineers during countdown and, possibly, vultures.
One doctor watched the man’s chest; another, the movements of his face. Macdougall himself kept his eyes on the scale’s indicator. “Suddenly, coincident with death,” wrote Macdougall, “the beam end dropped with an audible stroke hitting against the lower limiting bar and remaining there with no rebound. The loss was ascertained to be three-fourths of an ounce.” Which is, yes, twenty-one grams. Hollywood metricized its reference to the event for the simple reason that 21 Grams sounds better. Who’s going to go see a movie called Point Seven Five Ounces?
Over the years, Macdougall repeated the experiment on five more patients. A paper summarizing his findings ran in the journal American Medicine in 1907. In the months that followed, dubious M.D s launched their criticisms in lengthy letters to the editor. Macdougall countered them all. One correspondent pointed out that the sphincter and pelvic floor muscles relax at death, and that the loss was perhaps urine and/or feces. Macdougall patiently replied that if this were the case, the weight would remain upon the bed and, therefore, upon the scale. Someone else suggested that the dying patients’ final exhalation might have contributed to the drop in weight. To prove that it hadn’t, Macdougall gamely climbed onto the cot and exhaled “as forcibly as possible,” while Sproull watched the scale. No change was observed.
The most likely culprit was something called “insensible loss”: body weight that is continually being lost through evaporating perspiration and water vapor in one’s breath. Macdougall claimed to have accounted for this. His first patient, he wrote, lost water weight at the rate of an ounce per hour, far too slowly for insensible loss to explain the sudden three-quarter-ounce drop at death.
THE HISTORICAL AUTHORITY on insensible weight loss is a Paduan physiologist named Sanctorius. Known humdrumly as the “founding father of metabolic balance studies,” Sanctorius coined the term “insensible perspiration” in 1690, in a diverting volume entitled Medicina statica.* To aid him in his research, Sanctorius devised an experimental scale of his own. He suspended a platform on a massive steelyard scale. The platform held a bench with a hole cut out of the center of it and a bucket underneath it, and in front of the platform stood a supper table: Out box and In box. Sanctorius sat himself down on the platform, enjoyed a meal, and then sat around on the scale for eight hours, availing himself of the bucket when needed. He then weighed, to use his exuberantly capitalized phrasings, “the Excrements of the Guts”—observing on an unrelated tangent that “the thick ones are lighter and swim.” Sanctorius found that a small portion of the food weight remained unaccounted for, i.e., wasn’t down there in the bucket. This he ascribed to evaporated sweat and breath vapor, which he collectively dubbed insensible perspiration.
Sanctorius calculated that an eight-pound intake of meat and drink will, over one day, yield five pounds of insensible perspiration—or an average of three ounce
s of sweat and breath vapor lost per hour: three times the rate Macdougall observed. At one point Sanctorius describes the digestion of “a supper of eight pounds.”† It soon became clear there was little overlap between the dripping trencherman of Sanctorius’s day and Macdougall’s dry little consumptives. I skipped ahead to Section VI, which was all about the effects of immoderate coitus on insensible perspiration. Sanctorius effected the quaint habit of presenting his findings in the form of aphorisms. As in, “Aphorism XXXIX: Such a Motion of a Body as resembles that of a Dog in Coition, is more hurtful than a bare Emission of Semen; for the latter wearies only the internal Parts, but the other tires both the Bowels and the Nerves.” Or “Aphorism XL: To use Coition standing, after a Meal, is hurtful; because as it is upon a full Meal, it hinders the Offices of the Bowels.” Sanctorius preached that by obstructing insensible perspiration, immoderate sex led to everything from “Palpitations in the Eyebrows and Joynts” to a hardening of the tunicles of the eyes—and here we have what I surmise to be the original striking of the masturbation-makes-you-go-blind myth. Sanctorius preached a carnal moderation that seemed almost killjoy—all the more so for the book’s wanton promotion of oysters as sources “of the greatest possible nourishment.”
