It is not economical to force the boiler to work at too high a rate, because it has been practically demonstrated that the boiler efficiency decreases after a certain point, as the rate of combustion increases.
In Entre Rios, decreases to 27 in.
As the tableland runs northward it decreases both in height and width, until it narrows to a few miles only, with an elevation of scarcely 1500 ft.; under the name of the Blue Mountains the plateau widens again and increases in altitude, the chief peaks being Mount Clarence(4000 ft.), Mount Victoria (3525 ft.), and Mount Hay (3270 ft.).
The Dividing Range decreases north of the Blue Mountains, until as a mere ridge it divides the waters of the coastal rivers from those flowing to the Darling.
The former presents an intimate mixture of boulders brought from Finland and Olonets (with an addition of local boulders) with small gravel, coarse sand and the finest glacial mud, - the whole bearing no trace of ever having been washed up and sorted by water in motion, except in subordinate layers of glacial sand and gravel; the size of the boulders decreases on the whole from N.
In Hungary and Russia a zone-tariff system is in operation, whereby the charge per mile decreases progressively with the length of the journey, the traveller paying according to the number of zones he has passed through and not simply according to the distance traversed.
During the winter the normal temperature decreases quite steadily from south to north; thus the mean temperature in January at Biloxi is 51° F., at Meridian, in the east central part, it is 46° F., and at Pontotoc it is 43° F.
Per mile, while that of the Sandusky decreases from about 7 ft.
Let us suppose that the light is incident perpendicularly, and that the grating interval increases from the centre towards that edge which lies nearest to the spectrum under observation, and decreases towards the hinder edge.
As the point P is more and more deeply immersed in the shadow, the illumination continuously decreases, and that without limit.
The use of such explosives decreases to some extent the danger from dust explosions; but experiment shows that no efficient explosive is absolutely safe, if used in excessive quantity, or in an improper manner.
In some mines dust seems to have but little effect on the health of the miners; indeed it is even claimed by some that coal dust decreases the mortality from phthisis.
Among these the softness decreases in about the following order: lead, pure silver, pure gold, tin, copper, aluminium, platinum, pure iron.
On descending into the substratum the finer material decreases and more stones are met with; farther down are seen larger fragments of unaltered rock closely packed, and this brash or rubble grades insensibly into the unbroken rock below.
Later the nitrogen-content of the nodule decreases, most of the organisms, which are largely composed of proteid material, becoming digested and transformed into soluble nitrogenous compounds which are conducted to the developing roots and seeds.
The oxygen, however, decreases with the depth, while the carbon dioxide increases.
Or more; farther east the elevation of the highland decreases steadily, and in the Hadramut, north of Mukalla, does not much exceed Hadramut.
The number of species and individuals steadily decreases in the cooler temperate zones, whilst it reaches its maximum in the tropics.
Sanitation decreases the death-rate, religion keeps up the birth-rate.
In the region of Galveston, along the northern section of the coast, where southerly or south-easterly winds from the Gulf prevail throughout the year, the climate is warm, moist and equable, but the moisture decreases westward and south-westward, and the equability, partly because of northerly winds during the winter months, decreases in all directions inland.
The mean annual temperature decreases to the north-westward with an increase of both altitude and latitude, and ranges from 73° F.
The mean temperature for January decreases from 59° at Brownsville, at the southern extremity of the state, to 36° at Amarillo in the Panhandle.
The average annual rainfall decreases quite regularly westward and south-westward from 47.6 in.
Its elevation decreases toward the N.
Its maximum solubility in water is at 34 0; above that temperature it ceases to exist in the solution as a decahydrate, but changes to the anhydrous salt, the solubility of which decreases with rise of temperature.
But as the air is withdrawn by the pump the sound decreases, and when the exhaustion is high the.
In that short time the displacement at H decreases from HP to HP' or by PP'.
At L the displacement backward decreases, or the motion is forward FIG.
But if the wind is against the sound the velocity of a point of the wave front is the normal velocity-the wind velocity at the point, and so decreases as we rise.
In the one, the energy of vibration of the source is measured, and the rate at which that energy decreases is observed.
Falling yearly; the amount decreases as one proceeds northward, and Leipzig, with an average annual rainfall of 17 in., enjoys the driest climate.
(3) This percentage decreases rapidly for longer spans, becoming about 25% for 75-ft.
And as the relative altitudes of crest and pass remain approximately the same as in the Western Kuen-lun, it is evident how greatly the general elevation of the twin border ridge decreases towards the east.
3 The twin ranges of the Astin-tagh are fairly equivalent in point of magnitude and regularity; but while the Lower Range, on the north, sensibly decreases in altitude towards the east,the Upper Range, on the south, maintains its general altitude in a remarkable way, and is gapped by steep, wild, deeply incised transverse glens directed towards the north, and generally fenced in by dark precipitous walls of rock.
The piedmont belt may be described as a maturely dissected peneplain over much of its extent; it is indeed one of the best examples of that class of forms. Its uplands are of fairly accordant altitude, which gradually decreases from 500 to 1000 ft.
In the first mile from the river; but this soon decreases to a less amount.
The second important embayment is the estuary of the Columbia river; but theoccurrence of shoals at the mouth decreases the use that might otherwise be made of the river by ocean-going vessels.
In the eastern forest region the number of species decreases somewhat from south to north, but the entire region differs from the densely forested region of the Pacific Coast Transition zone in that it is essentially a region of deciduous or hardwood forests, while the latter is essentially one of coniferous trees; it differs from the forested region of the Rocky Mountains in that the latter is not only essentially a region of coniferous trees, but one where the forests do not by any means occupy the whole area, neither do they approach in density or economic importance those of the eastern division of the country.
The decades 1840-1850,1880-1890and1860-1870have shown much the ~reatest decreases in the percentage of children; and some have attri~uted this to the alleged heavier immigration of foreigners (largely adults)- in the case of the two former decades, and the effects of the Civil War in the third.
So also the three decades immediately succeeding the above showed minimum decreases; and this has been attributed to a supposed greater birth-rate among the immiggants.
The age of the several inhabited islands, or at least the time since the last eruptions on them, decreases from W.
The mean annual temperature decreases to the north-westward on the Alleghany plateau, but on the Erie plain, in the extreme north-west, Lake Erie exerts its moderating influence, the mean temperature rises, and extremes shorten.
The mean annual temperature in the south-east province is about 52° F.; it decreases to 50° in the central province and to 47° or less in some of the north-west counties of the Alleghany plateau, but rises to 49° on the shore of Lake Erie.
In this particular case the solubility decreases with rise of temperature.
The electromotive force is practically constant no matter what the velocity of the disks, but according to some observers the internal resistance decreases as the velocity increases.
As the carbon-content increases the welding power naturally decreases rapidly, because of the rapid fall of the " solidus curve at which solidification is complete (Aa of fig.
The reason for its birth, of course, is that the solubility of carbon in austenite progressively decreases as the temperature falls, from about 2.2% at 1130° (a), to 0.90% at 690° (Ar 1), as shown by the line aS, with the consequence that the austenite keeps rejecting in the form of this pro-eutectoid cementite all carbon in excess of its saturation-point for the existing temperature.
The architrave is flat, and there is a space over it, serving both to admit light and to relieve the pressure on it from above, and the size decreases slightly from the bottom to the top. Within the doorway is, as a rule, a niche on the right, and a staircase ascending in the thickness of the wall to the left; in front is another similar doorway leading to the chamber in the interior, which is circular, and about 15 ft.
In both cases the amplitude of the oscillations decreases more or less rapidly.
If, however, an amount of energy a is taken up in separating atoms, the ratio is expressible as C p /C„= (5+a)/(3-Fa), which is obviously smaller than 5/3, and decreases with increasing values of a.
Rainfall is usually heavy in the S.E., but it decreases toward the N.W.
Thus population increases or decreases in fixed relation to the rise or fall of wages.
The angle of the slope decreases gradually from the margin of the inland ice, where it may be I° or more, towards the interior, where it is o°.
The amount of rain decreases from east to west, the mean annual rainfall being 32.7 in.
That is, the concentration of H-ions decreases and that of the HO-ions increases; the water becomes more alkaline because the carbonic acid of the bicarbonate has been abstracted by the phytoplankton to the extent that normal carbonate is left.
North of this zone the rainfall decreases towards the Arctic.
The line through the given point along which the potential decreases most rapidly is the direction of the resultant magnetic force, and the rate of decrease of the potential in any direction is equal to the component of the force in that direction.
It appears that as the temperature rises the resistance decreases to a minimum and then increases, the minimum point occurring at a higher temperature the stronger the field.
It appears that the elements at about the middle of each row are the most strongly paramagnetic; towards the ends of a row the susceptibility decreases, and ultimately becomes negative.
This decreases as r increases; its value ranging from na/A to al(nA).
+u r by Sr. Then (ï¿½ 56 (iii.)) (x+h)" lies between S r and Sr+i; and provided S r includes the numerically greatest term, I Sr+i-Sri constantly decreases as r increases, and can be made as small as we please by taking r large enough.
(ii.) Instead of examining what happens as r increases, let us examine what happens as h/x decreases, r remaining unaltered.
The proportion of freedom to inevitability decreases and increases according to the point of view from which the action is regarded, but their relation is always one of inverse proportion.