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( 20 ) upon theSwedifhminerals. There are in Scot land and the northern provinces of England indurated lead-ochres, but for want of fuffi- cient experiments, their places in the fyflem are ftill uncertain. Page 188, before Seft. CXCII. In Hungary and Tranfilvania the lead ore con tains, befides the fiiver, a confiderable quantity of gold. rWhetherlead is mineralifed with more metallic bodies, or not, is as yet unknown. The mine of Morgenftern, at Frevberg, has a pecu liar variety of lead-cre containing fiiver, which deferves to be oblerved on account of itsyellowifh- brown colour •, and likewife on account of its fm- gular figure, which confifts of thin cylinders. Sometimes it is found growing in dendritical forms, like the knit-cobalt, About Goflar they call a lead-ore, mixed with blend, brown lead-ore. Page 190, line 6 from the bottom, An indurated iron clay has lately been found under the furface of the lea in the Faroe ifles, in which there is fcatterec] a zeolite with native copper. Page 191, line 9, In Hungary they call this coppery lapis lazuli, After line 5, Mod of it is very rich. They bring o&oedral cryftals from India and Siberia, and others from Cornwall, and the Banat of Tetnefwar in Hungary. Page 192, line 6, In Saalfeld they find a fort of green, fomewhat indurated calcareous fubftance, containing cop per ■, this, when broken, looks fat, and fomewhat fhining;