BY MARSHALL S. PIKE, OF THE HARMONEONS

DESCRIPTIVE: Opposite Harper's Ferry,--which is situated on a pleasant

elevation at the junction of the Potomac and Shenandoah rivers--a few

rods north of "Pinnacle Bluff," a flighty eminence on the Blue Ridge

Mountains, stands a most singular formation of rock, known as

'Washington's Face'; and which, to a casualist void of imaginative

powers, is easily recognized if pointed out by a guide; but to a close

observer, however, with common discernable perception, it presents _at

first sight_ a most striking and correct resemblance of _the great

original_. From midway the bridge which crosses the Potomac, the

countenance and contour of the face _to me_, appeared discriminatingly

perfect, and constrained me to look upon it as _one_ of the most

wonderful, and the noblest work of revealed nature.

In the high barren cliffs of the Blue Mountain Ridge,

That frightfully hang o'er the trestle-built bridge,

Juts out into space a huge rocky bluff,

Which the elements rudely left broken and rough.

Near this, stands a bust so exquisitely fair,

That the chisel of art would be uselessness there!

For nature wrought well till the model was done--

An impress on stone of our GREAT WASHINGTON.

The Earth born from chaos at some mighty shock,

Left the image to rest on the high mountain rock,

On a turret-like peak, in the heavens above,

_As a sentinel over the country we love:_

Where the sunbeam could linger till daylight had fled,

Where the bright stars of night, form a crown o'er its head;

And where, through the greenwood, the faintest breeze creeps,

To sigh for the Hero, who deathlessly sleeps.

There it stands like a giant in storm and in calm,

Like the Hero in battle, no foeman could harm!

And commandingly looks with a Patriot's pride,

On the wild mountain stream of Potomac's fast tide,

Whose waters swell on in the valley between,

Through the vast hilly regions and forests of green;

O'er a rock-bottomed track, to the blue-bosomed sea,

From its struggles to rest, like our sire of the free.

Stand up there in might, till the bright sun shall die,

Till the stars glimmer out their light in the sky,

And the moon shall no longer lend beauty or light,

But _all_ shall again be dark chaos and night,--

Till then, let its base be the tall craggy steep,

Where rocks are o'er moss-grown, and ivy-vines creep;

With the Heaven's wide canopy over its head,

_An immortal image of greatness that's dead._

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[Illustration: THE VIOL SERAPHINE]

INTRODUCTION.--The clear tones of a viol or bass viol are generally

admitted to be more melodious than those produced by other kinds of

instruments, and many have expressed a desire to see an instrument so

constructed as to be played with keys, like the organ or piano forte,

and give the tones of the violin. This is the character of the

instrument here introduced. It is elegant in appearance; occupies less

than half the space of a piano forte, and is so light and portable

that a lady-performer may readily place it before her, and thus avoid

the necessity,--unpleasant to all parties,--of turning her back on the

company. We do not say that an instrument of this kind has been as yet

constructed complete: but the principle has been proved, and it may,

and probably will be soon, offered to the public, at a cost not

exceeding sixty dollars.

EXPLANATION.--In the engraving, a side view elevation only is

represented, showing only one string and one key of a series of twenty

or more of each. The body of the machine A B, is a light hollow chest

about three feet square and six inches deep, supported by four posts

or legs with castors. Two bridges, C and D, extend across the breadth

of the chest. The bridge D is supported by a cleat, E, in which is

inserted the pin F, to which is attached one end of the string C D F.

The other end of the string is simply attached to the bridge C. A

key-lever, G H, passes through the bridge, and is mounted on a pivot

therein. The front end of the key (G) is held in its ordinary position

by a small spring thereunder, and may be easily depressed by the

finger of the performer: the other end of the key serves as the

bearing of the pivot of a delicate arbor, the opposite pivot of which

has its bearing in the bridge D. On the front end of this arbor is a

wheel three-fourths of an inch in diameter, with its periphery smooth,

and polished with rosin, or rosin varnish; and so adjusted, that by

the depression of the key, this wheel is brought up in contact with

the string, whereby, if in motion rotarily, a full sound is produced,

as if a violin bow was drawn across the string. On the other end of

the arbor is a grooved pulley, over which passes a silken cord, which

also passes round a delicate band-wheel, I, below, and by which,

motion is communicated to the arbor and sounding wheel. The band-wheel

is mounted on a shaft, I J, which has its bearings in two small head

blocks which project from two crossbars: and from the block J is

suspended a vertical rod, to the bottom of which is attached a

treadle, K L, and from which a curved ratch, L M, extends upward and

takes to a small ratchet on the shaft I J; so that, by the horizontal

motion of the treadle, the motion is communicated to the wheel, &c.

The teeth of the ratch and ratchet have so gentle an inclination on

one side of each, that although the ratch applies force to the ratchet

in the upward direction, they slide freely over in their return. It

may be understood that the machine is to have two treadles and two

ratches, which move forward alternately: and that twenty or more

arbors, pulleys, strings and keys are arranged in series, although

only one of each is represented in the engraving. The cord applies to

each pulley in the series, by passing over the first, under the

second, and over the third, and so on, descending from the last of the

series to the band-wheel. Each arbor is placed directly under its

respective string, and it is also proposed to place moveable stops

under the strings, at equal distances from the key bridge, and to

regulate the tones by adjusting the stops, without depending on the

pins at the ends for that purpose. We shall employ a competent

mechanic to construct one or more of these instruments as soon as

convenient, and give due notice accordingly.

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Scientific American magazine, Vol. 2 Issue 1 The advocate of Industry and Journal of Scientific, Mechanical and Other Improvements · 第 8 / 93 题