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PASTE (O. Fr. paste, modern pate, Lat...

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Originally appearing in Volume V20, Page 890 of the 1911 Encyclopedia Britannica.
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PASTE (O. Fr. paste, See also:modern pate, See also:Late See also:Lat. pasta, whence also in Span., See also:Port. and Ital., from Gr. 1r&vrrl or 1raara, See also:barley See also:porridge, or salted pottage, ir&ao'ety, to sprinkle with See also:salt)  , a mixture or See also:composition of a soft plastic consistency . The See also:term is applied to substances used for various purposes, as e.g. in See also:cookery, a mixture of See also:flour and See also:water with See also:lard, See also:butter or See also:suet, for making pies and pastry, or of flour and water boiled, to which See also:starch or other ingredients to prevent souring are added, forming an adhesive for the affixing of See also:wall-See also:paper, See also:bill-posting and other purposes . In technical See also:language, the term is also applied to the prepared See also:clay which forms the See also:body in the manufacture of pottery and See also:porcelain (see See also:CERAMICS) and to- the specially prepared See also:glass, known also as " strass," from which See also:imitation gems are manufactured . This latter must be the purest, most transparent and most highly refractive glass that can be prepared . These qualities are comprised in the highest degree in a See also:flint glass of unusual See also:density from the large percentage of See also:lead it contains . Among various mixtures regarded as suitable for strass the following is an example: powdered See also:quartz 300 parts, red lead 470, potash (purified by See also:alcohol) 163, See also:borax 22, and See also:white See also:arsenic x See also:part by See also:weight . See also:Special precautions are taken in the melting . The finished colourless glass is used for imitation diamonds; and when employed to imitate coloured See also:precious stones the strass is melted up with various metallic oxides . Imitation gems are easily distinguished from real stones by their inferior hardness and by chemical tests; they may generally be detected by the comparatively warm sensation they communicate to the See also:tongue .

End of Article: PASTE (O. Fr. paste, modern pate, Late Lat. pasta, whence also in Span., Port. and Ital., from Gr. 1r&vrrl or 1raara, barley porridge, or salted pottage, ir&ao'ety, to sprinkle with salt)
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