In the choice of a boiler of this description it should be remembered that rapid heating, economical combustion of fuel, and facilities for cleaning, are requisites, the absence of any of which considerably lowers the efficiency of the apparatus.
It is followed by a cold south wind which often lowers the temperature 25°.
The steamer on reaching the given position lowers one, or perhaps two, mark buoys, mooring them by mushroom anchor, chain and rope.
In the polar areas the melting of sea-ice and of ice formed by precipitation lowers the density of the seawater and causes a difference of level which sets up streaming movements towards the equator.
Evaporation of the water and anything that lowers the hydrogen-ion concentration have the same effect.
(b) Immigration sometimes increases the competition in the labour market, and thus lowers wages.
The run carbide, however, is never so rich as the ingot carbide, since an excess of lime is nearly always used in the mixture to act as a flux, and this remaining in the carbide lowers its gasyielding power.
Addition of salt lowers the melting point again, till at D we obtain another non-variant point.
(5) In that carburizing lowers the melting point of the iron greatly, it lowers somewhat the temperature to which the mineral matter of the ore has to be raised in order that the iron may be separated from it, because this separation requires that both iron and slag shall be very fluid.
While not directly causing death, morphinism so lowers the bodily powers that the patient is easily carried off by some intercurrent malady.
It depresses respiration, and in large doses lowers temperature.
If the order of stratification differ from that of densities, we can show that each step of approximation to this order lowers the sum of tensions.
It will suffice if such a sail elevates and lowers itself successively.
It lowers itself - the front part of the wing strongly resists, the sail which follows it being flexible yields.
Carried by the ribbing (the anterior margin of the wing) which lowers itself, the sail or posterior margin of the wing being raised meanwhile by the air, which sets it straight again, the sail will take an intermediate position and incline itself about 45° plus or minus according to circumstances.
It is only in very large doses that it weakens the intracardiac nervous ganglia, slows and weakens the pulse, and dangerously lowers the blood pressure.