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The concretions found in the intestines and in the castings often have a worn appearance, but whether this is due to some amount of attrition or of chemical corrosion could not be told. Claparede believes that they are formed for the sake of acting as mill-stones, and of thus aiding in the trituration of the food.
Perrier saw these muscles in energetic action; and, as he remarks, the trituration of the food must be chiefly effected by this organ, for worms possess no jaws or teeth of any kind. Grains of sand and small stones, from the 1/20 to a little more than the 1/10 inch in diameter, may generally be found in their gizzards and intestines.
Man's teeth are thoroughly fitted for the trituration of cooked meat, which is, indeed, as well suited to their mechanical action as are fruits, nuts, and roots. Hence we see that the objection to a meat diet based on the structure of man's teeth does not apply to the use of cooked meat as diet. The use by man of uncooked meat is not proposed or defended.
In short, the whole accumulation of loose débris under the glacier, resulting from the trituration of all kinds of angular fragments reaching the lower surface of the ice, presents a sort of paste in which coarser and lighter materials are impacted without reference to bulk or weight.
The first is used in alluvial gold and tin workings and in preparing some silver, copper, and other ores for smelting, and consists merely in separating the heavier metals and minerals from their gangues by their greater specific gravity in water. The second includes the trituration of the gangue and the extraction of its gold or silver by means of mercury.
We were in the classroom, and Edwards was complaining of the bad smell of the room " "Bad smell!" interrupted Henderson, "I'll bet you what you like Edwards didn't say bad smell. He's not the man to call a spade a spade; he calls it an agricultural implement for the trituration of the soil." "Why, what should he say?" asked Kenrick, "if he didn't say `bad smell'?"
These words will be clear to those who have been around artists and who know what a distance separates them from the most enlightened amateur. The amateur can judge and feel. The artist only, who has wielded the implements, knows, before a painting, how it is done, what stroke of the brush has been given, and why; in short, the trituration of the matter by the workman.
It lay upon me as a mountain might crush a little Titan. There was no cracking frost, no cutting stream, to wear away, by slowest trituration, that mountain of folly and wickedness. But what I suffered most from was the fact, that I must seem to the poor of my parish unsympathetic and unkind.
But in some of the pits at St. They are usually angular, and when spherical owe their shape generally to an original concretionary structure, and not to trituration in a river's bed. These large fragments of stone abound both in the higher and lower level gravels round Amiens and at the higher level at Abbeville.
The finer the particles the closer must be the mesh, and nothing but careful experiment will enable the battery manager to decide this most important point. The American slotted screens are best; they wear better than the punched gratings and can be used of finer gauge. Woven steel wire gauze is employed with good effect in some mills where especially fine trituration is required.
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