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Steam Color Scintil. projected in any combination desired on lator

a curtain of steam issuing at high pres

sure from an arrangement of pipes and T

HIS latest electrical invention is the nozzles. These nozzles can be arranged

work of W. D'Arcy Ryan, illuminat- for a great variety of effects. A long, ing engineer of the General Electric horizontal pipe, with nozzles at short inCompany, and bids fair to supersede the tervals arranged to throw the steam verelectric fountain that has so long held tically, forms a curtain on which the preëminence as a spectacular feature. The beams of light are thrown. Each Scintillator has recently been tested searchlight is equipped with transparent nightly at Nahant, Mass., before shipping screens of five or more colors. The efto Jamestown, Va., where it is to be fect of these lights, when thrown on the used as an important illuminating feature steam, is startling and beautiful. A num

ber of figures can be worked out by suitable manipulation of the lights. The projectors are arranged to be thrown out of focus, if desired, so as to obtain either a very concentrated beam or rings of light of varying diameters. In this way it is possible to project on the steam curtain a number of colored rings around a common center. By varying the color screens, kaleidoscopic effects are obtained.

The possible combinations are limited only by the ingenuity of the operator. Fans, pinwheels, sunbursts, star effects, waterfalls, etc., can be mounted on a single inconspicuous fixture. For instance, most amusing effects are obtained by causing steam to issue from a number of loose pieces of rubber hose, and throwing the light on the wriggling steam jets,

suggesting the motion of a huge ser"NIAGARA Nozzle WATERFALL." Spectacular effect produced by playing colored search

pent. lights on bank of escaping steam.

Bombs are shot into the air, containing

a mixture which, when exploded, forms of the Jamestown Exposition to be held clouds of dense smoke; or the bombs may in 1907.

contain confetti. When these clouds of The device comprises a number of smoke or confetti, as they float away, are powerful searchlights arranged in such followed by the light, the effect is very manner that the beams of light can be pleasing.-L. I. HARRIS.

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COURTESY OF SCIENT FIC AMCRILAN,

Winged Aëro Machine
WITH gigantic wings measuring 45

feet from tip to tip, M. Florencie,
member of the Aëro Club of Paris, seeks
to solve the secret of successful aërial
navigation. The "orthopter" or "Alapping-
wing" machine, as it is called, consists of
two aëroplanes partly covered with can-
vas, the remaining portion of each being
designed so as to imitate the action of a
bird's feathers in flight. The
chine, which weighs but thirty pounds,
is fitted to the
aëronaut's body.

FLORENCIE AËROPLANE ATTACHED TO OPERATOR. His legs furnish the propelling force. He stands in stirrups, and by means of a cord from foot to wing, flaps the great Africa. The boat is specially built for pinions. The wings are lowered by out- service in shallow waters. In order to stretching the legs; a spring fixed to the secure this end, it was necessary to conframe raises them. A series of longitud- struct it on somewhat awkward lines. inal.flaps make up the "feathers” of the Nevertheless, owing to its powerful enmachine. A rudder in the rear acts as gines, fair speed can be attained. On its the tail.

trial trip, bearing a load of four tons, and with a draught of 12 inches, it made eight

knots an hour. The boat is constructed Light-Draught Launch

of galvanized stecl. In length, it is 56

feet 3 inches; beam, 9 feet. The hull is THE accompanying illustration is from subdivided by six water-tight bulkheads,

a photograph of the motor-launch a deck being formed by fitting floor Spider, recently constructed for British boards along the bottom of the boat. In government service in southern Nigeria, order to facilitate steering on the light

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draught, three balanced rudders are pro- the jungle, it will go hard with him. vided.

When alone, the bird will not attack.
Supported by a flock of friends, however,

often numbering several thousand, the Wood Conquers Stone bird will seek out his hereditary foe and NOT

OT even rocks can withstand the give battle. On such occasions the tiger gentle but persistent and resistless

seeks safety in flight.. A hand thrust into force put forth by Nature in her proces

a cage filled with these little gamesters

will elicit a furious assault from their ses of plant growth. A remarkable in

combined forces. Assembled en masse, they know no fear.

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Horse Digs a Well
OUT
UT on the Arizona desert they use

horses for some odd purposes. In this case the horse has actually been put to work digging a well in the hope of finding water. The mode of digging is as follows: The horse is driven into an enclosure, the bottom of which is an endless chain consisting of slabs of wood revolving around iron cylinders placed at each end. In the effort to walk, the horse, of course, turns this treadmill. One of the cylinders is attached to a shaft, which, as it moves back and forth, pulls up and down the walking-beam shown in front of the treadmill. Passing through the right-hand arm of the walking-beam,

is a rope to which is attached the drill. STURDY OAK GROWING THROUGH A Rock.

When the shaft fastened to the treadmill

is pulled backward, the drill is raised; stance in evidence of this may be seen and when it moves forward, the drill is near the city of Waterbury, Conn., where lowered. In this way the apparatus is a large, sturdy oak tree has performed forced into the ground on the same printhe unusual feat of bursting its way ciple that a pile-driver forces down piles through a thick stratum of rock. As in building wharves and other structures. shown in the illustration, the tree appears to be growing directly on top of the stone; in fact, the pressure exerted by it when growing was sufficient to rend the rock apart. The displacement of the rent rock is quite apparent in the picture.

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Tiger's Tiny Foe THE tiger bird, so-called because he is

the one thing the royal beast of India fears, is no larger than the English sparrow. Yet so bold and combative is he, that if the great cat is surprised by a sufficient number of the little creature's kind far from the protecting shelter of

DIGGING A WELL BY HORSE POWER.

Smallest Dry-Dock THE great giant floating dry-dock

Dewey, built by the United States Government and sent to the Philippines, is said to be the largest floating dry-dock, it being large enough to take in two war vessels at once. It is interesting, by way of contrast, to see a photo of what is probably the smallest of the floating drydock family. This midget, shown in the accompanying cut, is moored in the Chicago river and owned by the Great Lakes Towing Company, and is used in repairing tugs on the river.-W. Hild.

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Rails Can't Spread the great strain ordinarily imposed on the

outer rail, which often results in its To reduce the number of wrecks on

railroads and thereby save many lives, splitting or turning, is borne in part, is the function of the Musgrove rail

under this new method, by the inner rail.

Furthermore, creeping is obviated, and fastener and protector, invented by Rob

fish-plates and angle-bars are dispensed ert G. Musgrove, of Jackson, Miss. The

with. The accompanying illustrations device is intended to be placed at the

will give some idea of the way the device is constructed and the manner in which it is placed in operation. In view of the frequency of railway accidents, all such preventives are worthy of careful study.

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UNITED

DETAILS OF MUSGROVE RAIL-FASTENER,

or

Displaces Celluloid

STATES CONSUL MCFARLAND, who is stationed at

Reichenberg, Bohemia, reports that a . meeting ends of the rails to prevent their substitute for celluloid has been discovspreading, sinking, or warping. . The ered by a Gablontz experimenter. The present mode of fastening the rails is new material is durable and cheap, costmerely to lay them on ties, and drive in ing but little more than glass. spikes at intervals of twelve fourteen inches. It is almost impossible for such a track to resist for any length of time the heavy pounding of the great mogul engines and trains of freight cars.

The new invention supports the rails and reinforces them at each end as well. Moreover, it is claimed that at curves

MUSGROVE RAIL-FASTENER AND PROTECTOR INSTALLED.

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Self-Bailing Lifeboat weight must naturally seek the water, THE self-righting, self-bailing boat quickly force the boat back into position.

herewith illustrated is one of a number used in the United States Life-Saving Service. Possessing great strength

Clock Flashes Signals and buoyancy, and being very difficult to capsize, its superiority over the ordinary AT precisely three minutes to nine lifeboat for long trips is at once evident. every evening, look for an interest

In the floor of the boat, which is so ing sight if you go to Philadelphia. The placed as to be on a level with the water time is to be flashed for a distance of thirwhen manned, are several openings, each ty miles by a circle of lights placed on connecting by a metal tube with an open- the City Hall tower, just beneath the feet ing in the bottom. As water cannot rise of the great statue of William Penn

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SELF-RIGHTING AND SELF-BAILING LIFEBOAT. The three openings on each side of the keel are part of the self-bailing device, and through them the water that

has been shipped is emptied.

above its own level, and as each tube is which surmounts it. On clear nights resclosed at the floor level by a valve which idents of remote suburbs can plainly see opens downward, no water can pass up the lights on the tower, and these suburinto the boat, while any dashing in from banites will watch for the extinguishing above is at once shipped through the of the lights at three minutes before nine tubes. So quickly is this accomplished, o'clock. At nine to the dot, the lights that a full boat can empty itself in about will blaze again, so that anyone setting half a minute.

the chronometer by the appearance of In order to procure the self-righting these beacons will have the exact Washquality, each is furnished with a heavy ington time to the second. iron keel, and well provided with ballast. This is only one of many unique featIf overturned, it is impossible for the ures of this interesting timepiece. For boat to remain so, on account of the ele- years no satisfactory method could be vated air chambers in the bow and stern; found to overcome the difficulties due to and as it rolls upon one side, the ballast high winds and the retarding effect of and the iron keel, which by their own snow and sleet. It was determined at

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