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Sur Face Workings: Many are an outgrowth of sur face workingsface workings into bank deposits because overburden became excessive as the quarry face progressed into the bank. Other mines are in areas where the topography will not permit sur face workingsface workings or where it is desirable to excavate relatively thin strata of rock of special quality. Underground mining is more expensive per unit of output than sur face workingsface quarrying but is often justified. Among advantages are extension of the operating- season and freedom from contamination of the stone. Sometimes underground mining enables unwashed stone to pass specifications.
Mines generally have entries on the horizontal, many times from an outside quarry Floor and many workings continue on underground at that level. Some mines are inclined to follow a dipping stratum of rock. sur face workingsface quarries and underground mining are sometimes worked at the same location, winning high-grade stone from underground for special markets, while quarrying lower chemical-grade stone for use as aggregates.
The most important qualities for hair are that it be healthy, shining, and in a flattering, easy-to-manage style. Many fashion magazines suggest hair styles according to the shape of the face in order to make the face resemble as closely as possible the perfect oval. The circularity of a round face may be minimized by a sleek, controlled style with side bangs. A square face needs a style that cuts across the square corners at the temples and is full around the jaw. The best style for a long face also rounds off the corners at the temples and is short. For a triangular face, a narrow chin should be filled out with chin-length hair, while a wide chin may be minimized with wide bangs. In finding the right hairstyle, however, a woman should also consider the proportions of her whole figure, the texture of her hair, her skill in handling it, and the character of her life. |
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