Gypsum

{jip’-suni) [yvipog, chalk], CuS04 -j- 2H20. Native calcium sulphate. Deprived of its water of crystallization it constitutes plaster of Paris. circle]. n.A convo- {ji’-rus) Gyrus lution See a Convolutio of the brain.[yvpoq, H ch367.xhtml h 303