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Updated: May 13, 2025


The variations in cold or heat influence liquors; they acquire density in the cold, and lose it in the heat: hence follows that the areometer does not sink enough in the winter, and sinks too much in the summer. Naturalists have observed that variation, and regulated it.

The siren is operated under a pressure of seventy-two pounds of steam, and can be heard, under favorable circumstances, from twenty to thirty miles. "Its density, quality, pitch, and penetration render it dominant over such other noises after all other signal-sounds have succumbed." It is made of various sizes or classes, the number of slits in its throat-disk diminishing with its size.

Wheeler, a man of great density and no tact whatever, came bustling out into the passage, and having shaken hands in a hearty fashion, told him to put his hat on a nail and come in. "No news of the cap'n, I suppose?" he asked, solemnly, after Fraser was comfortably seated. "Not a word," was the reply. The dock-foreman sighed and shook his head as he reflected on the instability of human affairs.

Let us remember that these things are occurring in a country of millions upon millions of acres of vacant lands, to be had almost for the asking, and where, even in the parts first colonized, density of population bears but a small relation to that of western Europe.

All this the young fireman did with considerable energy and haste, because the density of the smoke was increasing, and his retreat might be cut off by the flames at any moment. "Clear the way there!" he gasped, on reaching the window. "All right," replied Bob Clazie, who was still presenting his branch with untiring energy at the flames.

"An unfortunate individual who answered to the somewhat well-worn sobriquet of Jones, and appeared to have been trying some experiments as to the comparative density of his own skull and the materials of the sidewalk, made an involuntary appearance before Mr. Justice Smith." Now the little fool who writes this does not think of imitating Dickens.

It now remains for us to consider what may be the condition of the interior molten magma; and in doing so we must be guided to a large extent by considerations regarding the nature of the extruded matter at the surface. Now, observation shows that, as bearing on the subject under consideration, lavas occur mainly under two classes as regards their density.

This gun, having a feeble charge of powder at a low gravimetric density, fires the torpedo, and, it is said, succeeds in sending it many yards, and with a sufficient terminal velocity to explode the charge by impact.

These may sometimes be tuffs, although their density or compactness is such as the cause them to resemble many of those kinds of trap which are found in ordinary dikes. WACKE is a name given to a decomposed state of various trap rocks of the basaltic family, or those which are poor in silica.

We are then, at this stage of our experiments, in the presence of a critical point, at which we do not know whether the matter is liquid or gaseous; for, in either condition, it has the same density, the same heat of constitution, and the same properties. It is a new state, the gaso-liquid state. An experiment of Cagniard-Latour re-enforced this explanation of the phenomena.

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