Emanuelis Swedenborgii ... Regnum subterraneum sive minerale de ferro : de que modis liquationum ferri per Europam passim in usum receptis : de que conversione ferri crudi in chalybem : de vena ferri et probatione eius : pariter de chymicis praeparatis et cum ferro et victriolo eius factis experimentis &c. &c (1734)
l6 2 PARAGRAPHUS XIIL Modus venam fern coquendi , ferrumque cru dum recoquendi Marylandice & Penfihanice in India occidentali . … Vena narratur coloris cani aut grisei elfe , nec abfimilis vasis sigulinis landicis , dimidia fui parte ferro pollens . Ferrum hujus venae reliquis p a f ' mam praeripere dicitur . Ante 9 circiter annos ab administratore regioni Sir Wiljam Keith ferri coquendi opus circa flumen Christinae…
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