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French Mail Auto THE accompanying illustration shows

a new type of French automobile constructed for the postal and telegraph departments of the City of Paris. The officials of this department have been experimenting with autos for several years for this service, and it is stated that they have found exactly what they have been seeking for in this type of construction. It is maintained that alcohol, steam and electricity have been tried successively for power in operating these autos, and the latter was finally decided upon as being the most satisfactory. are fifteen cars in operation, a fact which assures constant service between the depots and the various substations. The accompanying view shows very well the general form and appearance of the

vehicle and the method of operation. There

MACHINE FOR SETTING ADS. are two comfortable seats provided, one for the chauffeur as well as for an assist- the United States, seems able to introant, and the seats are sufficiently raised

duce modern equipment in its postal to allow the road to be seen for a consid

service. erable distance ahead.

The batteries of these automobiles are charged in the post office at certain hours, and they last for five hours without re- Machine Sets Ads charging There are eight forward speeds provided, and two backward PRINTERS

PRINTERS are likely to undergo a speeds, by the controlling apparatus. The repetition of the hardship they enaccumulators are located in the rear. dured a few years ago when the introThe French Government, unlike that of duction of the Mergentraler type-casting

machine temporarily
threw so large a
number of them out of
work. But it is the man
who sets advertisements

that is threatened this
POSTES ET TÉLÉGRAPHES

time. Hitherto, owing to
the varied styles of types
used in the advertising
columns, hand work in
this department has been
relied upon almost abso-
lutely. On the Mergen-
thaler and similar ma-
chines, only one style of
type can be set in each
line, and this line is set
solid; if the slightest
error be made in the first
casting, to rectify the
mistake the whole line
must be reset.

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AUTO FOR FRENCH POSTAL SERVICE.

These defects in the Mergenthaler and down. Meantime the intruder, all unsimilar machines have long exercised the conscious that an alarm has been rung in, mechanical faculties of inventors, without, virtually walks into a trap; and if the however, practical results being thereby call is promptly responded to, is soon in secured. However, two New York men the lock-up. have solved the problem. Their invention casts individual types, assembles

Boat that Fumigates them in words, and then, when the line is completed, transfers them

to the galley: THE German East African Colony, last

year, were exposed to special danger like a type-writer, a keyboard being em- of plague infection from Zanzibar, and ployed. In the new device, on the matrix though no accidents occurred, the Coloof each key the operator controls four nial Department decided to take special different fonts or styles of type. The use of a lever brings the font desired into service. The number of fonts may be indefinitely increased by multiplying the number of faces on the matrix bar, though for most purposes four fonts will be ample. The operator can run through his copy, inserting here a word in italics, there a word in full-faced Roman, etc., as desired. The mold for each letter, as has been implied, is independent. The various matrices of the bar are brought to position over the mold by a spring, which slides the bar until it is arrested against one of a series of stops set by a key of

FUMIGATING AND FIRE-FIGHTING Boat. the keyboard.

measures of precaution against this dan

gerous epidemic. Orders were therefore For Trapping Thugs

placed for a completely equipped disin

fecting and fire-extinguishing vessel. A PHONOGRAPHIC device that will The boat is now being shipped to Dar-es

call the police by telephone, adds a Salaam by the Steamer "Prinzessin" of new hazard to the ever-increasing dan- the German East African Line. The gers of the burglar's profession. When boat has the type of a lighter and is an attempt is made to force a window or about 50 feet in length, 13 feet in width door with which the proper connections and 3 feet 4 inches deep. Outside of a have been made, an electric current op- large disinfecting, rat-destroying and erates a phonograph in the garret. The fire-extinguishing apparatus on the Claymachine calls up central and asks for the ton system the boat contains a tubular police station. The phonograph then in- boiler for the operation of the system, forms the officers of the robbery, giving and a fire engine of an output of about street and number, and repeats this in- 150 tons water per hour. In the middle formation as long as the receiver is part (where the general fumigating ap

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paratus, boiler and fire engine are in- Motor Boat for Freight stalled) the vessel is open. Beside the boiler, placed at the rear of the vessel, THE accompanying illustration shows there are located coal bunkers for four

the sea-going motor barge Pickford's tons, and in the center of the boat, sul

"Wasp," said to be the first English phur tanks for two tons of sulphur, in ad

motor-propelled cargo boat. In its pardition to the hose for conveying the gas

ticular field the vessel parallels the work into the vessels to be fumigated. In

done on land by the motor truck. If front of the disinfecting apparatus there practicable on sea such a craft should be is installed the fire engine, while in the

eminently more so on lakes and rivers. fore part of the boat will be found the

The "Wasp" is equipped with a 26boiler-feeding tank and the box contain

horsepower motor, and for fuel Russian ing chains and accessories. The rudder

petroleum is employed. She is built of apparatus is located on the fore deck, and

steel. The mast and derrick are of pine, an undulated-sheet roof to protect the

and the steering wheel of teakwood, and whole of the machinery extends through

is so placed that the helmsman can handle out the length of the boat.

the boat and engine from a strong shelter It is a special advantage of Clayton gas

arranged around the wheel. Aft of the that not only rats, which are known to

engine room is a space to be used for

stores. play an important part in the transmission of the plague, but any other agents propagating the disease are destroyed by it, as well. It may be said that the use Gives Diver Strength of carbonic acid for the destruction of rats is being gradually abandoned, as rats THE difficulty a diver experiences in have been found to stand a relatively lifting weights beneath the water is high percentage of this gas; viz., up to partly overcome by a new Italian inventhirty per cent, without being destroyed. tion. This is a device worked out by

, Nor" has producer gas been generally Signor Restucci, and which has been adopted for the purpose in question, formally adopted by his government. owing to its toxic effect on man, in con- The mechanism is a diving suit, the artijunction with absence of any smell, which ficial arms of which are worked from gives no warning of peril.

the inside by the wearer. The leverage

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Latest Torpedo Boat

To Stop Runaway Car A GASOLINE torpedo boat is the latest addition

to the British navy; THE New Jersey and Hudson River The new craft is 60 feet in length and Railway, an electric line, has adopted nine feet in beam, being much smaller an unusual kind of stopping device for than the average steam-propelled torpedo the steep places on the Palisades, along boat. The vessel has these advantages: the Hudson. The cars ascend the cliffs It is small, light and fast. It will carry in a zigzag course at an average grade a load of three tons, is equipped with of 7 per cent. In the event of a car's three propellers, and can make twenty- running away, a siding track, with the four knots an hour.

switch point always in direct connection It is maintained by eminent naval en- with the main track, serves to draw off gineers, that on account of the small size,

the car.

The rails of this siding are the shallow draft and great radius of always buried in sand. The friction action, as well as the very great speed between the sand and the wheels, of shown by this form of torpedo boat, course, brings the runaway at once to a success is assured for this type of craft stop. On each side of the switch rail is for coast defense purposes, and it is built a trough, which holds the sand. claimed that it also has given excellent The rail is covered to a depth of two and account of itself in rough seas, with very one-half inches. Numerous tests have little wash when traveling at full speed. proved the efficiency of the apparatus.

One of the important and interesting The device should be of value in savpoints in connection with this boat is that ing property and lives.

Persian Carpets

By H. R. Thompson

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3T frequently happens, in of the performance of his tasks, and

consequence of industrial where the monotonous discipline of the
development and the tech- workshop may not be imposed. From
nical skill resulting there- time to time, even the most industrious
from, that a traditional in- worker will stop to smoke his water-pipe,

dustry disappears from drink his tea, and enjoy a siesta. It may the land of its birth, killed by outside be added that the climate is such that the competition. So, Venice—for example, continuous, uninterrupted toil of western has long since ceased to be the center for workshops does not seem to be possible. the manufacture of mirrors; but it Hence the industry has been modified seems now, the other hand, as only within the limits of local customs. though Persia would still continue to be This statement is based principally upon the producer of carpets. In short, “Per- the results at Sultan-Abad, where the sian carpet” is not a mere name. The two undertakings have been established proof is that the customs reports of the along lines that will be appreciated in Empire of the Shah, imperfect and in- Europe. One of these houses belongs complete as they are, show an annual ex- to a Manchester firm; and in spite of the portation of from 3,000 to 4,000 bales of opposition of the native merchants and carpets, valued at not less than $350,000. courtiers, who feared the competition,

Carpet-making may be considered to they have succeeded in enlisting the servbe the true natural industry of Persia; ices of a goodly portion of the populaand, being carried on in the most primi- tion of Sultan-Abad and the surrounding tive fashion, it occupies thousands of villages. At present there are about hands. It is not only the fixed popula- 5,000 workers, producing an annual outtion that engage in it, but the nomads put valued at about $1,000,000. The also. The whole world knows of the European house has offices at the gates carpets of Shiraz, of Kirman, of Meshed, of the city for its own employees, as well of Sultan-Abad and Tauris. A curious as warehouses for the storing of goods, fact is that the industry has just received and a dyeing establishment where the a new impulse, by which it will be en- wool is prepared for the use of families abled to meet European competition, for working at home; for no worker is pernew blood has been infused in the form mitted to provide his own wools, since the of foreign capital, which has established chances are that they would be colored large houses, without disturbing the na- with anilines and thus be liable to a. tives in the most important of their na- rapid change of shade. We have said tional habits. There are a number of that the work is that of the family. centers devoted to the manufacture of Practically the man, the head of the carpets, of a class and variety fixed by family, acts as a contractor and agent what is found in the district or the tribe, with the European house, while his nuwhose models and methods are identical. merous wives first, and then his young But everywhere, even in the region of daughters, work at the fabric by hand, Tauris and Sultan-Abad, where, as we which frequently requires the continuous have said, the European promoters and

labor of three months for a single piece. dealers have been most active, the native The European house not only furprefers to work at home, in order that nishes the wools ; but every time an orhe may be at perfect liberty in the matter der is placed, it gives the contractor a

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