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Updated: May 19, 2025
None of the beds are of great horizontal extent, and there is much cross- stratification in the sands, and in some places black carbonaceous seams and lignite. In the midst of these leaf-beds in Studland Bay, Purbeck shells of the genus Unio attest the fresh-water origin of the white clay. On the whole, they remind the botanist of the types of subtropical India and Australia.
It held also all the oxygen since locked up in rocks by their oxidation, and all the carbon dioxide which has since been laid away in limestones, besides that corresponding to the carbon of carbonaceous deposits, such as peat, coal, and petroleum. On this hypothesis the original atmosphere was dense, dark, and noxious, and enormously heavier than the atmosphere at present.
On meeting the cook several days later the following words were heard: "Do you expect me to cook such eggs as these! About every other one is spoiled." On examination of the ovaries after slaughtering, it was found that in the case of one of the carbonaceous fed hens the ovules were in a more advanced stage, but on the whole the nitrogenous fed hens were much nearer the laying period.
Any carbonaceous fuel, such as, say, lignite, coal, or charcoal, can be employed.
Porphyritic tuffs and massive limestone compose the western chain of the Andes above Lima, while in the Oroya Valley we find carbonaceous sandstones. Some of the tuffs may be of the Jurassic age, though the Cretaceous period is also largely represented.
Basins which contained the food and water were kept within a box constructed of lath, so arranged that the fowls could reach between the slats and procure food and drink without wasting or soiling. July 26th the hens and chickens were each separated into two lots of five each, as follows: Hens, nitrogenous ration, weighed 23 lb. 8.5 oz. Hens, carbonaceous ration, weighed 23 lb. 9 oz.
The produce of carbon on a meadow, or an equal surface of forest land, is independent of a supply of carbonaceous manure, but it depends upon the presence of certain elements of the soil which in themselves contain no carbon, together with the existence of conditions under which their assimilation by plants can be effected.
Though protein can be burned in the body, it is not an economical fuel, either from a physiological or financial standpoint. The energy obtained from flesh costs much more than the same amount of energy obtained from carbonaceous foods.
Another of these substances is starch, or its equivalent, sugar. Rice, bread, and vegetables in general, are largely made up of this starchy or sugary substance, which, as it contains a considerable quantity of carbon, we speak of as the carbonaceous element in food.
In Dutch and factory cheeses, where the curd has been precipitated by hydrochloric acid, the food value is less than where rennet is used; but even in this case, it is far beyond meat in actual nutritive power." BUTTER is a purely carbonaceous or heat-giving food, being the fatty part of the milk, which rises in cream.
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