I?6 flgltz rocks. curs alfo in great quantity in Alia ; as in the pro- vinceof Labor in India;* T.««. » Perfi.5* Loheia, in the country of Yemen, c. on 1 able quantities have been obferved in vanous part, of Africa and America, and very lately in South Wales. 5. Chalk Formation. Kreide-Gebirge. Werner. i. This appears to be one of the newe o t e floetz formations, and is nearly the laft link of the ^UiTvery Ample ; for it contains, befides chalk, on i; a fmall portion of flint. The flmt occurs in tuberofe- fhaped maffes, or in the form of petrifac tions imbedded in the chalk; and fometimes it ^ forms thin beds, which are more or left cou, - nuous, and alternate with thicker beds of chalk. Za'ms but few petrifadions and thefe are prin cipally echinites, oftracites, and belemmtes. It is more or lefs diftinftly ftratifted. Like all new formations, it contains but few metalliferous fofiils. All that have been hitherto found are iron- pyrites in fmall balls, and fmall portions of iron- ° Chr Very few obfervationshavebeen hitherto made, the view of afcertaining its relative antiqui ty Its occurrence on the fea-coaft, and its earthy afpeft point out the latenefs of its formation. 5 . It occurs only in low fituations, and moft fr - .quently on fea-coafts, where it forms confiderable