I had been there at least an hour and was growing right drowsy.

At length Professor Surd came in. He sat down in the dusk opposite me,

and I thought his eyes glinted with malignant pleasure as he said,

abruptly:

“So, young man, you think you are a fit husband for my girl?”

I stammered some inanity about making up in affection what I lacked

in merit, about my expectations, family, and the like. He quickly

interrupted me.

“You misapprehend me, sir. Your nature is destitute of those

mathematical perceptions and acquirements which are the only sure

foundations of character. You have no mathematics in you. You are fit

for treason, stratagems, and spoils--Shakspere. Your narrow intellect

cannot understand and appreciate a generous mind. There is all the

difference between you and a Surd, if I may say it, which intervenes

between an infinitesimal and an infinite. Why, I will even venture to

say that you do not comprehend the Problem of the Couriers!”

I admitted that the Problem of the Couriers should be classed rather

without my list of accomplishments than within it. I regretted this

fault very deeply, and suggested amendment. I faintly hoped that my

fortune would be such--

“Money!” he impatiently exclaimed. “Do you seek to bribe a Roman

senator with a penny whistle? Why, boy, do you parade your paltry

wealth, which, expressed in mills, will not cover ten decimal places,

before the eyes of a man who measures the planets in their orbits, and

close crowds infinity itself?”

I hastily disclaimed any intention of obtruding my foolish dollars, and

he went on:

“Your letter surprised me not a little. I thought _you_ would be the

last person in the world to presume to an alliance here. But having

a regard for you personally,”--and again I saw malice twinkle in his

small eyes,--“and still more regard for Abscissa’s happiness, I have

decided that you shall have her--upon conditions. Upon conditions,” he

repeated, with a half-smothered sneer.

“What are they?” cried I, eagerly enough. “Only name them.”

“Well, sir,” he continued, and the deliberation of his speech seemed

the very refinement of cruelty, “you have only to prove yourself worthy

an alliance with a mathematical family. You have only to accomplish a

task which I shall presently give you. Your eyes ask me what it is. I

will tell you. Distinguish yourself in that noble branch of abstract

science in which, you cannot but acknowledge, you are at present sadly

deficient. I will place Abscissa’s hand in yours whenever you shall

come before me and square the circle to my satisfaction. No, that is

too easy a condition. I should cheat myself. Say perpetual motion.

How do you like that? Do you think it lies within the range of your

mental capabilities? You don’t smile. Perhaps your talents don’t run

in the way of perpetual motion. Several people have found that theirs

didn’t. I’ll give you another chance. We were speaking of the Problem

of the Couriers, and I think you expressed a desire to know more of

that ingenious question. You shall have the opportunity. Sit down

some day when you have nothing else to do and discover the principle

of infinite speed. I mean the law of motion which shall accomplish an

infinitely great distance in an infinitely short time. You may mix in a

little practical mechanics, if you choose. Invent some method of taking

the tardy courier over his road at the rate of sixty miles a minute.

Demonstrate me this discovery (when you have made it!) mathematically,

and approximate it practically, and Abscissa is yours. Until you can, I

will thank you to trouble neither myself nor her.”

I could stand his mocking no longer. I stumbled mechanically out of

the room and out of the house. I even forgot my hat and gloves. For

an hour I walked in the moonlight. Gradually I succeeded to a more

hopeful frame of mind. This was due to my ignorance of mathematics. Had

I understood the real meaning of what he asked, I should have been

utterly despondent.

Perhaps this problem of sixty miles a minute was not so impossible,

after all. At any rate, I could attempt, though I might not succeed.

And Rivarol came to my mind. I would ask him. I would enlist his

knowledge to accompany my own devoted perseverance. I sought his

lodgings at once.

The man of science lived in the fourth story back. I had never been

in his room before. When I entered, he was in the act of filling a

beer-mug from a carboy labeled _aqua fortis_.

“Seat you,” he said. “No, not in that chair. That is my

Petty-Cash-Adjuster.”

But he was a second too late. I had carelessly thrown myself into

a chair of seductive appearance. To my utter amazement, it reached

out two skeleton arms, and clutched me with a grasp against which I

struggled in vain. Then a skull stretched itself over my shoulder and

grinned with ghastly familiarity close to my face.

Rivarol came to my aid with many apologies. He touched a spring

somewhere, and the Petty-Cash-Adjuster relaxed its horrid hold. I

placed myself gingerly in a plain cane-bottomed rocking-chair, which

Rivarol assured me was a safe location.

“That seat,” he said, “is an arrangement upon which I much felicitate

myself. I made it at Heidelberg. It has saved me a vast deal of

small annoyance. I consign to its embraces the friends who bore, and

the visitors who exasperate, me. But it is never so useful as when

terrifying some tradesman with an insignificant account. Hence the

pet name which I have facetiously given it. They are invariably too

glad to purchase release at the price of a bill receipted. Do you well

apprehend the idea?”

While the Alsatian diluted his glass of _aqua fortis_, shook into it an

infusion of bitters, and tossed off the bumper with apparent relish, I

had time to look around the strange apartment.

The four corners of the room were occupied respectively by a

turning-lathe, a Rhumkorff coil, a small steam-engine, and an orrery

in stately motion. Tables, shelves, chairs, and floor supported an odd

aggregation of tools, retorts, chemicals, gas-receivers, philosophical

instruments, boots, flasks, paper-collar boxes, books diminutive, and

books of preposterous size. There were plaster busts of Aristotle,

Archimedes, and Compte, while a great drowsy owl was blinking away,

perched on the benign brow of Martin Farquhar Tupper. “He always roosts

there when he proposes to slumber,” explained my tutor. “You are a bird

of no ordinary mind. _Schlafen Sie wohl._”

Through a closet door, half open, I could see a human-like form covered

with a sheet. Rivarol caught my glance.

“That,” said he, “will be my masterpiece. It is a microcosm, an

android, as yet only partly complete. And why not? Albertus Magnus

constructed an image perfect to talk metaphysics and confute the

schools. So did Sylvester II; so did Robertus Greathead. Roger Bacon

made a brazen head that held discourses. But the first named of these

came to destruction. Thomas Aquinas got wrathful at some of its

syllogisms and smashed its head. The idea is reasonable enough. Mental

action will yet be reduced to laws as definite as those which govern

the physical. Why should not I accomplish a manikin which will preach

as original discourses as the Rev. Dr. Allchin, or talk poetry as

mechanically as Paul Anapest? My android can already work problems in

vulgar fractions and compose sonnets. I hope to teach it the Positive

philosophy.”

Out of the bewildering confusion of his effects Rivarol produced two

pipes, and filled them. He handed one to me.

“And here,” he said, “I live and am tolerably comfortable. When my coat

wears out at the elbows, I seek the tailor and am measured for another.

When I am hungry, I promenade myself to the butcher’s and bring home

a pound or so of steak, which I cook very nicely in three seconds by

this oxy-hydrogen flame. Thirsty, perhaps, I send for a carboy of _aqua

fortis_. But I have it charged, all charged. My spirit is above any

small pecuniary transaction. I loathe your dirty greenbacks and never

handle what they call scrip.”

“But are you never pestered with bills?” I asked. “Don’t the creditors

worry your life out?”

“Creditors!” gasped Rivarol. “I have learned no such word in your

very admirable language. He who will allow his soul to be vexed by

creditors is a relic of an imperfect civilization. Of what use is

science if it cannot avail a man who has accounts current? Listen. The

moment you or any one else enters the outside door this little electric

bell sounds me warning. Every successive step on Mrs. Grimler’s

staircase is a spy and informer vigilant for my benefit. The first

step is trod upon. That trusty first step immediately telegraphs your

weight. Nothing could be simpler. It is exactly like any platform

scale. The weight is registered up here upon this dial. The second step

records the size of my visitor’s feet. The third his height, the fourth

his complexion, and so on. By the time he reaches the top of the first

flight I have a pretty accurate description of him right here at my

elbow, and quite a margin of time for deliberation and action. Do you

follow me? It is plain enough. Only the A B C of my science.”

[Illustration: EDWARD P. MITCHELL

From a photograph taken in 1872, the year in which he wrote “The

Tachypomp.” Mr. Mitchell is now the editor of the New York “Sun.”]

“I see all that,” I said, “but I don’t see how it helps you any. The

knowledge that a creditor is coming won’t pay his bill. You can’t

escape unless you jump out of the window.”

Rivarol laughed softly. “I will tell you. You shall see what becomes

of any poor devil who goes to demand money of me--of a man of science.

Ha! ha! It pleases me. I was seven weeks perfecting my Dun-Suppressor.

Did you know,” he whispered exultingly--“did you know that there is

a hole through the earth’s center? Physicists have long suspected

it; I was the first to find it. You have read how Rhuyghens, the

Dutch navigator, discovered in Kerguellen’s Land an abysmal pit which

fourteen hundred fathoms of plumb-line failed to sound. Herr Tom,

that hole has no bottom! It runs from one surface of the earth to

the antipodal surface. It is diametric. But where is the antipodal

spot? You stand upon it. I learned this by the merest chance. I

was deep-digging in Mrs. Grimler’s cellar to bury a poor cat I had

sacrificed in a galvanic experiment, when the earth under my spade

crumbled, caved in, and, wonder-stricken, I stood upon the brink of

a yawning shaft. I dropped a coal-hod in. It went down, down, down,

bounding and rebounding. In two hours and a quarter that coal-hod came

up again. I caught it, and restored it to the angry Grimler. Just think

a minute. The coal-hod went down faster and faster, till it reached

the center of the earth. There it would stop were it not for acquired

momentum. Beyond the center its journey was relatively upward, toward

the opposite surface of the globe. So, losing the velocity, it went

slower and slower till it reached that surface. Here it came to rest

for a second, and then fell back again, eight thousand odd miles,

into my hands. Had I not interfered with it, it would have repeated

its journey time after time, each trip of shorter extent, like the

diminishing oscillations of a pendulum, till it finally came to eternal

rest at the center of the sphere. I am not slow to give a practical

application to any such grand discovery. My Dun-Suppressor was born of

it. A trap just outside my chamber door, a spring in here, a creditor

on the trap--need I say more?”

“But isn’t it a trifle inhuman,” I mildly suggested, “plunging an

unhappy being into a perpetual journey to and from Kerguellen’s Land

without a moment’s warning?”

“I give them a chance. When they come up the first time I wait at the

mouth of the shaft with a rope in hand. If they are reasonable and will

come to terms, I fling them the line. If they perish, ’tis their own

fault. Only,” he added, with a melancholy smile, “the center is getting

so plugged up with creditors that I am afraid there soon will be no

choice whatever for ’em.”

By this time I had conceived a high opinion of my tutor’s ability. If

anybody could send me waltzing through space at an infinite speed,

Rivarol could do it. I filled my pipe and told him the story. He heard

with grave and patient attention. Then for full half an hour he whiffed

away in silence. Finally he spoke.

“The ancient cipher has overreached himself. He has given you a choice

of two problems, both of which he deems insoluble. Neither of them is

insoluble. The only gleam of intelligence old Cotangent showed was when

he said that squaring the circle was too easy. He was right. It would

have given you your _Liebchen_ in five minutes. I squared the circle

before I discarded pantalets. I will show you the work; but it would

be a digression, and you are in no mood for digressions. Our first

chance, therefore, lies in perpetual motion. Now, my good friend, I

will frankly tell you that, although I have compassed this interesting

problem, I do not choose to use it in your behalf. I, too, Herr Tom,

have a heart. The loveliest of her sex frowns upon me. Her somewhat

mature charms are not for Jean-Marie Rivarol. She has cruelly said that

her years demand of me filial rather than connubial regard. Is love a

matter of years or of eternity? This question did I put to the cold,

yet lovely, Jocasta.”

“Jocasta Surd!” I remarked in surprise, “Abscissa’s aunt!”

“The same,” he said sadly. “I will not attempt to conceal that upon the

maiden Jocasta my maiden heart has been bestowed. Give me your hand, my

nephew, in affliction as in affection!”

Rivarol dashed away a not discreditable tear, and resumed:

“My only hope lies in this discovery of perpetual motion. It will give

me the fame, the wealth. Can Jocasta refuse these? If she can, there is

only the trap-door and--Kerguellen’s Land!”

I bashfully asked to see the perpetual-motion machine. My uncle in

affliction shook his head.

“At another time,” he said. “Suffice it at present to say that it is

something upon the principle of a woman’s tongue. But you see now why

we must turn in your case to the alternative condition, infinite speed.

There are several ways in which this may be accomplished theoretically.

By the lever, for instance. Imagine a lever with a very long and a

very short arm. Apply power to the shorter arm which will move it with

great velocity. The end of the long arm will move much faster. Now

keep shortening the short arm and lengthening the long one, and as you

approach infinity in their difference of length, you approach infinity

in the speed of the long arm. It would be difficult to demonstrate this

practically to the professor. We must seek another solution. Jean-Marie

will meditate. Come to me in a fortnight. Good night. But stop! Have

you the money--_das Gelt_?”

“Much more than I need.”

“Good! Let us strike hands. Gold and knowledge, science and love, what

may not such a partnership achieve? We go to conquer thee, Abscissa.

_Vorwärts!_”

When at the end of a fortnight I sought Rivarol’s chamber, I

passed with some little trepidation over the terminus of the air

line to Kerguellen’s Land, and evaded the extended arms of the

Petty-Cash-Adjuster. Rivarol drew a mug of ale for me, and filled

himself a retort of his own peculiar beverage.

“Come,” he said at length, “let us drink success to the Tachypomp.”

“The Tachypomp?”

“Yes. Why not? _Tachu_, quickly, and _pempo_, _pepompa_, to send. May

it send you quickly to your wedding-day! Abscissa is yours. It is done.

When shall we start for the prairies?”

“Where is it?” I asked, looking in vain around the room for any

contrivance which might seem calculated to advance matrimonial

prospects.

“It is here,” and he gave his forehead a significant tap. Then he held

forth didactically.

“There is force enough in existence to yield us a speed of sixty miles

a minute or even more. All we need is the knowledge how to combine

and apply it. The wise man will not attempt to make some great force

yield some great speed. He will keep adding the little force to the

little force, making each little force yield its little speed, until

an aggregate of little forces shall be a great force, yielding an

aggregate of little speeds, a great speed. The difficulty is not in

aggregating the forces; it lies in the corresponding aggregation of

the speeds. One musket-ball will go, say, a mile. It is not hard

to increase the force of muskets to a thousand, yet the thousand

musket-balls will go no farther and no faster than the one. You see,

then, where our trouble lies. We cannot readily add speed to speed,

as we add force to force. My discovery is simply the utilization of a

principle which extorts an increment of speed from each increment of

power. But this is the metaphysics of physics. Let us be practical or

nothing.

“When you have walked forward on a moving train from the rear car

toward the engine, did you ever think what you were really doing?”

“Why, yes, I have generally been going to the smoking-car to have a

cigar.”

[Illustration: Drawn by Reginald Birch

“THAT SHE HERSELF WAS NOT INDIFFERENT I SOON HAD REASON TO REGARD AS A

SELF-EVIDENT TRUTH”]

“Tut! tut! not that! I mean did it ever occur to you on such an

occasion that absolutely you were moving faster than the train? The

train passes the telegraph-poles at the rate of thirty miles an hour,

say. You walk toward the smoking-car at the rate of four miles an hour.

Then _you_ pass the telegraph-poles at the rate of thirty-four miles.

Your absolute speed is the speed of the engine, plus the speed of your

own locomotion. Do you follow me?”

The Century Illustrated Monthly Magazine (May 1913) Vol. LXXXVI. New Series: Vol. LXIV. May to October, 1913 · 第 119 / 166 题