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For new cast-iron pipes he gives b1 0.0002535 + 1/D 0.000000647; and recommends that this value should be doubled, to allow for the rust and incrustation which more or less form inside the pipes during use.

If it refuses to run, make sure that B1 is pressing against D. The speed of the engine may possibly be improved by careful adjustment of B2 and an alteration in the setting of the crank, and will certainly be accelerated by increasing the number of battery cells. The cost of the engine described was about 1s, 3d., exclusive of the battery.

The services of a second pair of hands are needed here, to hold while nailing is done. Nail holes having been drilled in the tops of the rafters and in the base pieces, the ends are stood upright and tacked to the ridge at the places marked for them, and after them the intermediate rafters, working from one end to the other. Then tack on the base pieces, b1, b3.

In the diagram R is this Morse "Receiver" joined in circuit with a battery B1; and a thin layer of nickel and silver dust, mixed with a trace of mercury, is placed between two cylindrical knobs or "electrodes" of silver fused into the glass tube d, which is exhausted of air like an electric glow lamp.

Moreover, these results would appear to indicate a different law from that which is expressed by the formula b1 u squared, as is easy to see by representing them graphically. It would be very desirable that fresh experiments should be made on water pipes at high pressure, and of various diameters.

These two oblongs, with their separate parts, are, as a fact, as follows: Where A is the German Empire, the shaded portion, B, is Austria-Hungary, and this last divided into B1, the more certain Austrian part, and B2, the less certain exposed Hungarian part, the latter of which is only protected from Russian assault by the Carpathian range of mountains, CCC, with its passes at DDD. M, the enemy on the right, Russia, is attacking the alliance, AB, along XX; while the enemy on the left, N, France and her Allies, is attacking along the lines YY.

The enemy, M, upon the right, attacking along the lines XX, may be able to give B2 a very bad time before he gets into the area of B1, and long before he gets into the area of the stronger Power, A. It is open to M so to harass B2 that B2 is prepared to break with B1 and give up the war; or, if the bond between B2 and B1 is strong enough, to persuade B1 to give up the struggle at the same time that he does.

The crank-shaft hole should be a trifle small, so that the crank shall get a tight hold of the shaft without pinning. The collar, D, and wipe, W, are soldered to the shaft after this has been passed through its bearings. The brush B1 should press firmly, but not unnecessarily so, against the collar.

The loss of pressure in question can only be calculated conveniently on the hypothesis that it is very small, and the general formula, For this purpose the binomial formula, au + bu squared, or the simple formula, b1 u squared, is generally adopted; a b and b1 being coefficients deduced from experiment.

That is, the strategical position of A is gravely embarrassed by the way in which his ally, B, separated into the two halves, B1 and B2, stands with regard to himself. B2 is isolated and thrust outward.