The Bottom of the Harbor (8 page)

The brown rat, the
R. norvegicus,
originated somewhere in Central Asia, began to migrate westward early in the eighteenth century, and reached England around 1730. Most authorities believe that it got to this country during the Revolutionary War. From ports all along the coast it went inland, hot on the heels of the early settlers, and now it thrives in every community and on practically every farm in the United States. Its spread was slowest in the high and dry regions of the West; it didn't reach Wyoming until 1919 and Montana until 1923. Its nose is blunt, and its ears are small and alert, and its eyes are sharp and shiny and joyless and resentful and accusing. Its fur is most often a grimy brown, but it may vary from a pepper-and-salt gray to nearly black. Partial albinos occasionally show up; the tame white rat, which is used as a laboratory animal and sometimes kept as a pet, is a sport derived from the brown.

In addition to being the most numerous, the brown rat is the dirtiest, the fiercest, and the biggest. “The untrained observer,” a Public Health Service doctor remarked not long ago, “invariably spreads his hands wide apart when reporting the size of a rat he has seen, indicating that it was somewhat smaller than a stud horse but a whole lot bigger than a bulldog. They are big enough, God protect us, without exaggerating.” The average length of adult brown rats is ten inches, not counting the tail, which averages seven inches. The average weight is three-quarters of a pound. Once in a while a much heavier one is trapped. One that weighed a pound and a half and measured twenty and a half inches overall (that is, counting the tail) was recently clubbed to death in a Manhattan brewery; brewery and distillery rats feed on mash and many become obese and clumsy. Some exterminators have maintained for years that the biggest rats in the country, perhaps in the world, are found in New York City, but biologists believe that this is just a notion, that they don't get any bigger in one city than they do in another. The black and the Alexandrian are about two-thirds the size of the brown.

The brown rat is distributed all over the five boroughs. It customarily nests at or below street level—under floors, in rubbishy basements, and in burrows. There are many brownstones and red-bricks, as well as many commercial structures, in the city that have basements or sub-basements with dirt floors; these places are rat heavens. The brown rat can burrow into the hardest soil, even tightly packed clay, and it can tunnel through the kind of cheap mortar that is made of sand and lime. To get from one basement to another, it tunnels under party walls; slum-clearance workers frequently uncover a network of rat tunnels that link all the tenements in a block. Like the magpie, it steals and hoards small gadgets and coins. In nest chambers in a system of tunnels under a Chelsea tenement, workers recently found an empty lipstick tube, a religious medal, a skate key, a celluloid teething ring, a belt buckle, a shoehorn, a penny, a dime, and three quarters. Paper money is sometimes found. When the Civic Repertory Theatre was torn down, a nest constructed solely of dollar bills, seventeen in all, was discovered in a burrow. Exterminators believe that a high percentage of the fires that are classified as “of undetermined origin” are started by the brown rat. It starts them chiefly by gnawing the insulation off electric wires, causing short circuits. It often uses highly inflammable material in building nests. The majority of the nests in the neighborhood of a big garage, for example, will invariably be built of oily cotton rags.

The brown rat is as supple as rubber and it can squeeze and contort itself through openings half its size. It has strong jaws and long, curved incisors with sharp cutting edges. It can gnaw a notch big enough to accommodate its body in an oak plank, a slate shingle, or a sun-dried brick. Attracted by the sound of running water, it will gnaw into lead pipe. It cannot climb as skillfully as the black and the Alexandrian, it cannot jump as far, and it is not as fleet, but it is, for its size, a remarkable swimmer. A Harbor Police launch once came upon three brown rats, undoubtedly from New Jersey, in the middle of the Hudson; in an hour and twenty-five minutes, swimming against the wind in tossing water, they reached the pilings of one of the Barclay Street ferry slips, where the policemen shot them. The brown rat is an omnivorous scavenger, and it doesn't seem to care at all whether its food is fresh or spoiled. It will eat soap, oil paints, shoe leather, the bone of a bone-handled knife, the glue in a book binding, and the rubber in the insulation of telephone and electric wires. It can go for days without food, and it can obtain sufficient water by licking condensed moisture off metallic surfaces. All rats are vandals, but the brown is the most ruthless. It destroys far more than it actually consumes. Instead of completely eating a few potatoes, it takes a bite or two out of dozens. It will methodically ruin all the apples and pears in a grocery in a night. To get a small quantity of nesting material, it will cut great quantities of garments, rugs, upholstery, and books to tatters. In warehouses, it sometimes goes berserk. In a few hours a pack will rip holes in hundreds of sacks of flour, grain, coffee, and other foodstuffs, spilling and fouling the contents and making an overwhelming mess. Now and then, in live-poultry markets, a lust for blood seems to take hold of the brown rat. One night, in the poultry part of old Gansevoort Market, alongside the Hudson, a burrow of them bit the throats of over three hundred broilers and ate less than a dozen. Before this part of the market was abandoned, in 1942, the rats practically had charge of it. Some of them nested in the drawers of desks. When the drawers were pulled open, they leaped out, snarling.

         

So far, in the United States, the bubonic plague has been only a menace. From 1898 to 1923, 10,822,331 deaths caused by the plague were recorded in India alone; in the United States, in this period, there were fewer than three hundred deaths. The plague first occurred in this country in 1900, in the Chinatown of San Francisco. It is generally believed that the bacteria were brought in by infected rats that climbed to the docks from an old ship in the Far Eastern trade that caught afire while being unloaded. This epidemic killed a hundred and thirteen people and lasted until the end of 1903. The plague broke out again in 1907, a year after the earthquake. In the same year there was an epidemic in Seattle. There have been two epidemics in New Orleans—one in 1914 and one in 1919 and 1920—and there was one in Los Angeles in 1924 and 1925. Since then there have been only sporadic cases. However, there is a vast and ominous reservoir of plague infection in the rural rodents of the West. During the first epidemic in San Francisco, many rats fled the city and infected field rodents, chiefly ground squirrels, in the suburbs. In 1934, thirty years later, Public Health Service biologists turned up the fact that the plague had slowly spread among burrowing animals—ground squirrels, prairie dogs, chipmunks, and others—as far east as New Mexico and Wyoming. Late last year it appeared fifty miles inside the western border of North Dakota. Public Health Service officials say that there is no reason to assume that the infection will not infiltrate into rodents of the Great Plains, cross the Mississippi, and show up in the East. Most of the diseased rodents inhabit thinly settled sections and come in contact with human beings infrequently. Even so, every year several people, usually hunters, are bitten by infected rodent fleas and come down with the plague. There is an ever-present possibility that a few infected rodents may stray from rural areas and communicate the disease to town and city rats. If the disease ever gets loose among city rats, epidemics among human beings are apt to follow.

There has never been an outbreak of the plague in New York. There have, however, been two narrow escapes. In 1900, plague-infected rats were found in ships in the harbor of New York, as well as in the harbors of San Francisco and Port Townsend, Washington. They got ashore only in San Francisco, causing the first Black Death epidemic in North America. Plague rats were found in New York Harbor for the second time early in January of 1943. Among themselves, health officials refer to this discovery as “the
Wyoming
matter.” The history of the
Wyoming
matter was told to me in 1944 by Dr. Robert Olesen, medical director of the New York Quarantine Station of the Public Health Service. Mr. Holsendorf sent me to see Dr. Olesen; they were colleagues years ago in the Public Health Service and are old friends. I saw Dr. Olesen in his office in an old, red-brick building overlooking the Narrows, in Rosebank, on Staten Island.

“The
Wyoming
matter has been one of the best-kept secrets in the history of the Public Health Service, and I'm proud of that,” Dr. Olesen said, “but I agree with what Ben Holsendorf has been saying lately—there's no reason at all to keep it secret any longer. I'll tell you about it.

“First of all, I'd better explain how we inspect ships. Every ship in foreign trade that comes into the harbor is boarded by a party made up of a customs officer, an immigration officer, a plant-quarantine man from the Department of Agriculture, a Public Health doctor, and a sanitary inspector, whose main job is to determine the degree of rat infestation aboard. While the doctor is examining the crew and passengers for quarantinable diseases, the sanitary inspector goes through the ship looking for rat tracks, gnawings, droppings, and nests. Rats have a smell that is as distinctive as the smell of cats, although not as rank, and an experienced inspector can detect their presence that way. The inspector pays particular attention to ships that have touched at plague ports. There are quite a few of these ports right now; Suez had an outbreak the other day and was put on the list. After he's made his search, he reports to the doctor, who orders a fumigation if things look bad. If infestation is slight and if the ship comes from a clean port, the doctor probably won't insist on a fumigation. I won't give you any wartime figures, but in one peacetime month, for example, we inspected five hundred and sixty ships, found that a hundred and thirty-two were infested to some degree, and fumigated twenty-four, recovering eight hundred and ten rats.

“We've been short-handed since the war began, and most of our fumigating is done by a group of twenty-two Coast Guardsmen. They were assigned to us early in the war and we trained them to make rat inspections and fumigations. We use hydrocyanic gas, which is one of the most lethal of poisons. An infested ship is anchored and a fumigation party of four or five Coast Guardsmen goes aboard. First, they send the entire crew ashore, carefully checking them off one by one. Then one of the Coast Guardsmen goes through the ship, shouting, banging on bulkheads with a wrench, and making as much racket as possible. He shouts, ‘Danger! Fumigation! Poison gas!' Then the Coast Guardsmen put on gas masks and toss some tear-gas bombs into the holds. That's to fetch out any stowaways who might be aboard. During the first months we used hydrocyanic, we killed a number of stowaways. A few weeks ago, in the hold of a South American freighter, the tear gas brought out eight weeping stowaways who had been hiding in an empty water tank. Two fellows in the crew had smuggled them aboard in Buenos Aires and had been feeding them. These fellows had kept their mouths shut and gone ashore, leaving the stowaways to be killed, for all they cared. When the Coast Guardsmen are satisfied a ship is empty of human beings, they seal the holds and cabins and open cans of hydrocyanic, liberating the gas. They even fumigate the lifeboats; rats often hide in them. After a certain number of hours—ten for a medium-sized ship—the holds are opened and aired out, and the Coast Guardsmen go below and search for dead rats. The rats are dropped in wax-paper bags and brought to a laboratory in the basement here. They are combed for fleas. The fleas are pounded in a mortar, put into a solution, and injected into guinea pigs. Then the rats are autopsied, and bits of livers and spleens are snipped out and pounded up. These are also put into a solution and injected into guinea pigs. If the fleas or the rats are infected, the pigs sicken and die. We began this work in 1921, and for twenty-two years we injected scores of generations of pigs with the fleas and livers and spleens of rats from practically every port in the world without turning up a single Black Death germ. We didn't want to find any, to be sure, but there were days when we couldn't help but look upon our work as routine and futile.

“Now then, late in the evening of January 10, 1943, the French freighter
Wyoming
arrived from Casablanca, North Africa, with a miscellaneous cargo, mainly wine and tobacco. A big convoy came in that evening, sixty or seventy ships, and we didn't get to the
Wyoming
until next day. Casablanca was on the plague list at that time; there had been an outbreak in December, shortly before the
Wyoming
sailed. The crew was carefully examined. No sign of illness. Then the captain brought out a deratization certificate stating that the ship had recently been fumigated—in Casablanca, if I remember correctly—and was free of rats; looking back, I feel sure the official who signed this certificate had been bribed. She was allowed to dock at Pier 34, Brooklyn, where she discharged some bags of mail. Next day she proceeded to Pier 84, Hudson River, and began discharging her cargo. Some rats were seen in her by longshoremen, and on January 13th we went over her and found evidence of infestation. She was allowed to continue unloading. On January 18th we fumigated her right at her dock and found twenty rats. We combed and autopsied the rats, and inoculated a guinea pig. Four days later the pig sickened and died. An autopsy indicated plague infection and cultures from its heart blood showed an oval organism which had all the characteristics of
Pasteurella pestis.
We made a broth of tissue from this pig and inoculated a second pig. It sickened and died. It was the Black Death, no doubt about it. We had found it in the harbor for the first time in forty-three years.

“In the meantime, the
Wyoming
had moved from the Hudson to Pier 25, Staten Island, for repairs. On January 29th we went aboard her, removed all excess dunnage and gear to the decks, and ripped open all the enclosed spaces in the holds; we were afraid the hydrocyanic hadn't penetrated to these spaces. Then we refumigated. Twelve more dead rats were found. On the same day we got in touch with Dr. Stebbins, the Commissioner of Health for the city, and told him about the situation. We were terribly apprehensive. The
Wyoming
had touched at piers in rat-infested sections in three boroughs and there was, of course, a distinct possibility that infected rats had got ashore and were at that moment wandering around the waterfront, coming in contact with local rats and exchanging fleas. Mr. Holsendorf, in his capacity as the Health Department's rat consultant, quickly got together some crews of trappers and put them to work setting break-back traps on the Brooklyn pier, the Manhattan pier, and the Staten Island pier, and in buildings in the vicinity of each pier. The trapping was done unobtrusively; we were afraid a newspaper might learn of the matter and start a plague scare. Early in February the first batch of rats was sent for autopsies to the laboratory of the Willard Parker Hospital, a hospital for contagious diseases, on the East River at Fifteenth Street. We sent them there, rather than bring them way down here to our laboratory, in order to get a report on them as quickly as possible. We waited for the report with considerable anxiety. It was negative on every rat, and we began to breathe easier. Mr. Holsendorf and his crews trapped from the end of January to the middle of May and the reports continued to come in negative. At the end of May we concluded that no
Wyoming
rats had got ashore, and that the city was safe.”