The need of an improved compound nipper with parts perfectly interchangeable has long been felt. Hall's compound and cutting nipper, manufactured by the Utica Drop Forge & Tool Co., Utica, 1ST. Y., has been remodelled and the parts are in every respect interchangeable. The advantage of such a tool is that it lasts indefinitely; when a part becomes worn it can be replaced at a slight cost.

The nipper is simplicity itself and will not get out of order; the parts are so constructed that with the aid of a screw-driver a new part can be inserted quickly and easily. Its construction throughout is of the best quality of tool steel, carefully hardened and tempered; the jaws and handles are drop forgings and not castings. All parts are guaranteed.

The extreme leverage makes it the easiest cutting nipper on the market. It can be had in three different finishes; black with polished jaws and plates, full polished or nickel plated, in the following six sizes: 4, 5, 6, 7, 8 and 11 in. If specially ordered it can be furnished for cutting music wire. New York office, No. 296 Broadway.

This well-known machine has been on the market since 1894, and the manufacturers, The Elbridge Electrical Mfg. Co. of Elbridge, N. Y., take great pride in the fact that the machine actually represents the finest possible construction throughout, and that its present first-class design and high efficiency are not the result of guess work or imitation, but rather brought about through more than ten years of gradual development and improvement, step by step.

"The Midget " is one of the smallest dynamos on the market, but unlike many others, it has almost every detail of large commercial machines and is, therefore, suitable for teaching and experimental purposes; in fact, the machine with hand power, is to be found in many of the schools and colleges in the world. Every facility has been provided by the manufacturers for the production of these machines at the smallest possible cost, consequently they are able to offer a better quality of goods at lower prices than would be possible without their facilities.

Weight of the Midget without hand power,4 pounds; weight with hand power, 12 pounds; height of hand power, 11 in.; length of outfit with hand power, 20 in. Pulley 7/8 in. diameter for 3-16 in. round belt.

The Midget has a short magnetic circuit with wrought iron magnet core and pole pieces accurately bored so that the armature clearance is only 1-32 in. Brass bearings are held in place by a single screw in each, and shoulders are provided for end chase. Brush holders are strong and easily adjusted, field coil is shunt wound in even layers throughout; it has heavy fibre bands. The armature is a perfect model in every way, has a lathe turned shaft, laminated core with perforations for the winding and waterproof insulation. The commutator is of copper, of good size and is well insulated.

The makers rate the Midget as having an output of 10 watts, that is, the load the machine will carry continuously, but it is able to deliver, for short periods, as much as 40 or even 60 watts. Every machine is also tested to operate as a motor, and made to run without load on a total expenditure of 1/4 of a watt of electrical energy.

With each machine is sent a little booklet of instructions for the care of machine, and for conducting 35 of the most important electrical experiments, including experiments in magnetism, gold, silver, nickel and copper plating, exploding powder, electric, lighting, etc.

The machine can be furnished with or without power, and is often supplied for special purposes to order. The Elbridge Company will be glad to correspond with all interested parties. No charge is made for experimental work necessary to perfectly adapt the Midget to special requirements.

The new catalogue recently issued by Carlisle & Finch, 228 E. Clifton Ave., Cincinnati, Ohio, decribes a number of new things which are of interest to readers of this magazine. A gasoline engine of 1-6 h. p. 2-cy-cle type, is of simple construction and just the thing for running small dynamos for charging storage batteries, or model lighting plants. It is of solid construction for the size and will undoubtedly give excellent service.

A 500-watt dynamo, or 8/4 h. h. motor of excellent de-design, a 150-watt alternating dynamo, a 150-watt multipolar dynamos', igniting dynamo of several types, water-motor and several new model railway outfits are other equally interesting things, making the catalogue one which every amateur interested in mechanics should possess.

Upon the advent of the automobile no wheel was found adapted to it. The wire wheel was tried and it did not look right; then the wood wheel was tried and it did not work right. The one is not adapted to a carriage; the other is not intended for an engine. A wheel that would meet both of these requirements was needed; one that would look like a wood wheel and work like a steel one. The wheel of an automobile has to do something more than carry weight; it must transmit the power of the motor.

In a horse drawn vehicle it is evident that there is no twist or torque on the hub of the wheel, for the power is applied through an axle that does not turn; the wheel is revolved by the friction of the road, and the only resistance to this motion is the frictional re-resistance of the bearing, which in the case of a good one is very slight.

The wheel of an automobile must transmit the whole power of the motor which is applied to it (usually) at the hub. This work it must do in addition to carrying the weight of the car and taking the sidewise thrusting strains whenever a car departs from a straight line. It must do all that an ordinary carriage wheel does, as well as all that the motor may call upon it to do, and no wheel is more illy adapted to take this torque or hub strain than one with a metal hub and a wooden spoke, nor is there any better abapted to such service than one that is made all in one piece.

A wood wheel depends upon the rim to hold it together. If the wood shrinks the rim must be shortened in order to bind the parts together; this can be done in the case of a carriage wheel but it is impossible in an automobile, because the size of the rim is fixed, and any alteration in it will destroy its usefulness as a seat for the tire.

This has made the wooden automobile wheel unreliable and short lived when the climatic conditions are unfavorable, for it is impossible to season wood so that it will not be affected by the varying conditions of climate.

The M.idgley Pressed Steel wheel, as illustrated above, and manufactured by The Midgley Manufacturing Co. of Columbus, Ohio, is made wholly of sheet steal: nothing else enters its construction, and it will be found to fully meet the requirements of the most exacting service.

We herein illustrate a new and very useful article offered by the Smith & Hemenway Company of 296 Broadway, publishers of the " Green Book " of hardware specialties.

It is a water motor which actually develops 1/8 brake horse power on 80 pounds pressure from a city main, using a No. 50 nozzle, or about 1/8 in. stream; 80 pounds being the ordinary pressure from a city main. Motors are furnished this way unless specially ordered.

The little motor develops a speed on pressure mentioned above of 4500 r.p.m. with an ordinary 5 in. emery wheel or a 9 in. buffiing wheel for polishing. The emery wheel is suitable for grinding knives, scissors, razors, axes, hatchets, hammers, or in fact, any edged tool. The buffing wheel is suitable for polishing, cleaning and buffing any metal surface.

This will be found a valuable addition to any boarding house, restaurant, dentist, butcher or private house where any grinding is to be done. It also has sufficient power for running sewing machines, small lathes, scroll saws, dynamos, etc.

The illustration above shows the motor attached to an ordinary screw sink faucet in a private residence and can be adjusted to either the right or the left hand side.

The total weight complete, put up in a box, with polishing wheel or buffing wheel, emery wheel, stick polish, is 6 1/2 pounds. Printed matter and prices will be sent upon application.