Cameos And How They Are Cut

Romo is nnïï thccbiet seat ot tho art of eameo-cuttuig, two kinds ot' which are prodmed, thosu ent in hard ■ stone, and those cut in ehell. Thé stone, whieh must be valuablo for tbis puspesë, ;ire the oriental onyx, provideü they Unre at least two different colors iu parallel ! ers. 'i'iif value of the stone is greatly iiicrenscd í'or this purpoi if it bas four nr five differeuÜJ oolorcJ parallel hiyers, if the layors are so dita as to Msist in marking tho devioe of the oatóoo, J)r examplii - a specimen of slane wiiirh hut four parallel lnyers niay ba usiod for a carneo of Minerva, when the ground' weuld be davk gioyi the faca Ügkt, the bast and heimet bhiek, and the crost over tho heimet bro-Wft or grey. All suoh, cárneos are w.-'Uihtby a lapidarv's In tho, with pointcil ififltSurriODti ot' stoel and by raeaus of iliamond dust. Shell ofnM aro ent from largo shells found on the Afrkan and Braaüan ooastb. Und gne aiJy show two layers one white and the óther either ple coffee oolor, or deep reddisli orange color. The subject is eut with smsili chiscls, out o? the white por tion of thu largo Shcïl. Shells adaptud for efelöèo cultin are donse, thiek, and coofikt u.-iually of three layers of diÜ'erently eolored shell material. In ou varictv of this bIií'11, eaeh layer is eomposed of many thia ptafces, that ip, laminated. the laniinre beintr perpendicular to the plane of the ïiKim layer and eaeh lamina) consisting of a series oí clongnted prismatie oells, adherent to their long tidtal The lamin? of tlie out er and mier layers are parali :1 to thii linei; of growtli, Avhile those of tho mídale lityers are at right angles to tbem In another variety, knonu as the cowries, there is :m additional layer whieh íh a duplieate of the naereous laver formo! the animal hasattaincd lts full giövytlt. - Wort i ts VVhat a sociuty, aht {til, but ■ t ! 1 1" of uiijsfur i