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Page 82
The magician of M. Maillardet is also worthy of notice. We copy the
following account of it from the _Letters _before mentioned of Dr.
B., who derived his information principal!
from the Edinburgh Encyclopaedia.
"One of the most popular pieces of mechanism which we have seen, Is
the Magician constructed by M. Maillardet, for the purpose of
answering certain given questions. A figure, dressed like a magician,
appears seated at the bottom of a wall, holding a wand in one hand,
and a book in the other A number of questions, ready prepared, are
inscribed on oval medallions, and the spectator takes any of these he
chooses and to which he wishes an answer, and having placed it in a
drawer ready to receive it, the drawer shuts with a spring till the
answer is returned. The magician then arises from his seat, bows his
head, describes circles with his wand, and consulting the book as If
in deep thought, he lifts it towards his face. Having thus appeared
to ponder over the proposed question he raises his wand, and striking
with it the wall above his head, two folding doors fly open, and
display an appropriate answer to the question. The doors again close,
the magician resumes his original position, and the drawer opens to
return the medallion. There are twenty of these medallions, all
containing different questions, to which the magician returns the
most suitable and striking answers. The medallions are thin plates of
brass, of an elliptical form, exactly resembling each other. Some of
the medallions have a question inscribed on each side, both of which
the magician answered in succession. If the drawer is shut without a
medallion being put into it, the magician rises, consults his book,
shakes his head, and resumes his seat. The folding doors remain shut,
and the drawer is returned empty. If two medallions are put into the
drawer together, an answer is returned only to the lower one. When
the machinery is wound up, the movements continue about an hour,
during which time about fifty questions may be answered. The inventor
stated that the means by which the different medallions acted upon
the machinery, so as to produce the proper answers to the questions
which they contained, were extremely simple."
The duck of Vaucanson was still more remarkable. It was _of _the size
of life, and so perfect an imitation of the living animal that all
the spectators were deceived. It executed, says Brewster, all the
natural movements and gestures, it ate and drank with avidity,
performed all the quick motions of the head and throat which are
peculiar to the duck, and like it muddled the water which it drank
with its bill. It produced also the sound of quacking in the most
natural manner. In the anatomical structure the artist exhibited the
highest skill. Every bone in the real duck had its representative In
the automaton, and its wings were anatomically exact. Every cavity,
apophysis, and curvature was imitated, and each bone executed its
proper movements. When corn was thrown down before it, the duck
stretched out its neck to pick it up, swallowed, and digested it.
{*1}
But if these machines were ingenious, what shall we think of the
calculating machine of Mr. Babbage? What shall we think of an engine
of wood and metal which can not only compute astronomical and
navigation tables to any given extent, but render the exactitude of
its operations mathematically certain through its power of correcting
its possible errors? What shall we think of a machine which can not
only accomplish all this, but actually print off its elaborate
results, when obtained, without the slightest intervention of the
intellect of man? It will, perhaps, be said, in reply, that a machine
such as we have described is altogether above comparison with the
Chess-Player of Maelzel. By no means--it is altogether beneath
it--that is to say provided we assume (what should never for a moment
be assumed) that the Chess-Player is a _pure machine, _and performs
its operations without any immediate human agency. Arithmetical or
algebraical calculations are, from their very nature, fixed and
determinate. Certain _data _being given, certain results necessarily
and inevitably follow. These results have dependence upon nothing,
and are influenced by nothing but the _data _originally given. And
the question to be solved proceeds, or should proceed, to its final
determination, by a succession of unerring steps liable to no change,
and subject to no modification. This being the case, we can without
difficulty conceive the _possibility _of so arranging a piece of
mechanism, that upon starting In accordance with the _data _of the
question to be solved, it should continue its movements regularly,
progressively, and undeviatingly towards the required solution, since
these movements, however complex, are never imagined to be otherwise
than finite and determinate. But the case is widely different with
the Chess-Player. With him there is no determinate progression. No
one move in chess necessarily follows upon any one other. From no
particular disposition of the men at one period of a game can we
predicate their disposition at a different period. Let us place the
_first move _in a game of chess, in juxta-position with the _data _of
an algebraical question, and their great difference will be
immediately perceived. From the latter--from the _data--_the second
step of the question, dependent thereupon, inevitably follows. It is
modelled by the _data. _It must be _thus _and not otherwise. But from
the first move in the game of chess no especial second move follows
of necessity. In the algebraical question, as it proceeds towards
solution, the _certainty _of its operations remains altogether
unimpaired. The second step having been a consequence of the _data,
_the third step is equally a consequence of the second, the fourth of
the third, the fifth of the fourth, and so on, _and not possibly
otherwise, _to the end. But in proportion to the progress made in a
game of chess, is the _uncertainty _of each ensuing move. A few moves
having been made, _no _step is certain. Different spectators of the
game would advise different moves. All is then dependent upon the
variable judgment of the players. Now even granting (what should not
be granted) that the movements of the Automaton Chess-Player were in
themselves determinate, they would be necessarily interrupted and
disarranged by the indeterminate will of his antagonist. There is
then no analogy whatever between the operations of the Chess-Player,
and those of the calculating machine of Mr. Babbage, and if we choose
to call the former a _pure machine _we must be prepared to admit that
it is, beyond all comparison, the most wonderful of the inventions of
mankind. Its original projector, however, Baron Kempelen, had no
scruple in declaring it to be a "very ordinary piece of mechanism--a
_bagatelle _whose effects appeared so marvellous only from the
boldness of the conception, and the fortunate choice of the methods
adopted for promoting the illusion." But it is needless to dwell upon
this point. It is quite certain that the operations of the Automaton
are regulated by _mind, _and by nothing else. Indeed this matter is
susceptible of a mathematical demonstration, _a priori. _The only
question then is of the _manner _in which human agency is brought to
bear. Before entering upon this subject it would be as well to give a
brief history and description of the Chess-Player for the benefit of
such of our readers as may never have had an opportunity of
witnessing Mr. Maelzel's exhibition.
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