COOH, which at higher temperatures is easily sulphonated with concentrated sulphuric acid; the sulphonation product represents a white solid, which easily dissolves in water forming a clear liquid.
Sulphonation of phloroglucinol succeeds at higher temperatures only, the sulphonic acid being a solid which is scarcely soluble in water, the latter then assuming a wine-red colour.
In this way we reached successive temperatures higher and higher until the death point--the point beyond which no subsequent germination ever occurred--was reached in regard to each organism.
During the winter, temperatures may skid to 30° below zero or more.
On summer days the temperatures may rise above 100°, although the nights are usually cool.
If the bodytemperatures of reptiles become too high, they die in a few minutes.
They are very sluggish when their body temperatures are low and become more active as these temperatures rise, but only to a certain point.
Their races won, their seeds produced, the annuals wither and fade away as the temperatures rise.
They determined the rate of rise of body temperatures of large lizards and alligators of all sizes during exposure to the midday sun.
The rectum is surprisingly sensitive to heat and you will flinch at temperatures only a degree or two higher than 98 Fahrenheit.
Or, harvest your garden early in the morning when temperatures are lowest.
It is slow work; the temperatures have sometimes to be read by lantern light.
I cannot help thinking of what I have read in the accounts of some of the earlier expeditions--namely, that at such temperatures it was impossible to take observations.
These temperatures of the water are in many respects remarkable.
At these low temperatures the ice became very hard and brittle, and was readily cracked or broken up by a blow or by packing.
I continue taking the temperatures of the water, rather a cool amusement with the thermometer down to -29° C.
The basin of Eastern Siam, with its thin vegetation and cut off from cooling breezes by its surrounding rim, is subject to terrific heats during the day and, during the winter, very low temperatures at night.
In Northern Siam, which lies at greatest distance from the sea and possesses greater radiation, the days may be hot even during the cold weather when the night temperatures afford a strong contrast by dropping to as low as 50 deg.
Furthermore, this distribution of temperatures tends to reduce the total wind energy by diminishing the trades and counter trades which are due to the variations of heat which are encountered in passing polarward from the equator.
We readily perceive that the effect of the oceanic circulation upon the temperatures of different regions is not only great but widely contrasted.
In fact, the existence of an atmosphere much denser than that of our own earth appears to be demanded by the fact that the temperatures are such as to permit the coming and going of snow.
Strong solutions may be used in baths in which temperatures above the boiling-point of water are required.
The comma bacilli thrive best at temperatures between 30° and 40° C.
The accurate measurement of very high temperatures is a matter of great importance, especially with regard to metallurgical operations; but it is also one of great difficulty.
The positive and negative phototropic curvatures of an identical organ at different temperatures is seen in the two records given in figure 145.
In describing thermonastic curvatures Pfeffer says that "a special power of thermonastic response has been developed by various flowers, in which low temperatures produce closing movements, and high temperatures, opening ones.
But after eliminating those dyes which require high temperatures and also those not suitable for pattern dyeing, there still remains a good range of colors.
The limitation of temperatures that may be used places some restriction on the choice of dyes.
Borchers predicted that, at the high temperatures available with the electric furnace, every oxide would prove to be reducible by the action of carbon, and this prediction has in most instances been justified.
Mean January temperatures equal to those along the northern limits of the western cottonmouth's distribution are reached in the vicinity of Connecticut, which is north of the geographic range of the eastern subspecies.
The eastern cottonmouth seems to be less tolerant of low temperatures than the western subspecies.
The lethal minimum and maximum are those temperaturesat which short exposure produces irreparable damage, and death inevitably results.
Since cottonmouths are semi-aquatic and are often exposed to temperatures that are lower than those of the air, they either must bask more often than terrestrial snakes or tolerate lower temperatures.
Since optimal temperatures determine activity, the diel cycle varies greatly from time to time.
The diel activity cycle likewise depends upon temperatures but is influenced by other factors as well.
Cottonmouths have been found on occasion when other snakes were inactive because of low temperatures, but minimal temperatures tolerated by this species are not known.
The northern edge of the range is probably limited by low temperatures in winter, and the western edge by lack of available habitat resulting from insufficient precipitation.
They are more sluggish at this time and more vulnerable to predation than later in the season when temperatures are optimal.
Cloacal temperatures were taken with a Schultheis quick-recording thermometer as soon as the snake could no longer right itself when placed on its back.
The maximal body temperatures tolerated by four cottonmouths were between 38 deg.
Cottonmouths are rarely exposed to dangerously hightemperatures owing to their semi-aquatic habits, but there are probably occasions when individuals reach the C.
By means of the facial or loreal pit found in all crotalids, the snake is able to detect objects having temperatures different from that of the surroundings of the objects.
Basking Since activity, digestion, and gestation depend upon adequate internal temperatures, there must be a process by which thesetemperatures are attained and for an appropriate time maintained.
The cause of this change must therefore lie in the small difference between the mean summer temperatures of 15.
The mean summer and winter temperatures in Germany differ by about 14.
The bodies that have their temperatures most easily raised by heat rays are likewise those that are most easily cooled by their own radiation, or that at the same temperature emit most heat-making rays.
The manner in which the temperatures of bodies are affected by rays producing heat is different for different substances, and is very much connected with their colours.
The temperatures at which bodies change their states from fluids to solids, though in general definite, are influenced by a few circumstances such as motion and pressure.
The fact that life can go on in a given plant at temperaturesbetween from 1 deg.
The temperaturesnecessary to cause these disturbances in the action of the living root-hairs vary for different plants, and even for different varieties of the same species.
This is why, for example, temperatures tend to a level, without the possibility of going backwards.
There reign temperatures impossible for us to realize.
And yet in reality the temperatureswill never reach perfect equality.
The difference of the temperatures only tends asymptotically toward zero.
Without heat the gelatinisation is very imperfect indeed, and at temperatures under 40° C.
Many attempts have been made to prepare nitro-glycerine explosives capable of withstanding comparatively low temperatures without freezing, but no satisfactory solution of the problem has been found.
The following table (B) shows the composition of the explosives examined, and the temperatures which accompanied their explosion.
At lower temperatures the dissolution is very imperfect indeed; and after the materials have been left in contact for days, the threads of the cotton can still be distinguished.
The figures give the requisite size of stove to raise the air to about the relative temperatures I have mentioned before, and with ordinary firing.
This latter fact explains the necessity for the hightemperatures employed, as mere perspiration could be attained with a comparatively low degree of heat.
The observer is sheltered from the intense light at high temperatures by a wedge of tinted glass, which further can be used in photometrically estimating the temperature by using it to obtain extinction of the field.
He is credited with having made no fewer than thirty thousand experiments, and in so doing he contributed largely to the modern chemical knowledge of the effect of high temperatures on minerals.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "temperatures" in a variety of sentences. We hope that you will now be able to make sentences using this word.
