. De re metallica. Metallurgy; Mineral industries. BOOK VIII. 351 bituminous, then the bitumen bums and can be smelled. These furnaces have a structure hke the structure of the furnaces in which ore is smelted, except that they are open in front ; they are six feet high and four feet wide. As for this kind of furnace, three of them are required for one of those in which the cakes are melted. First of all they are roasted in the first furnace, then when they are cooled, they are transferred into the second furnace and again roasted ; later they are carried to the third, and afterward back to th
. De re metallica. Metallurgy; Mineral industries. BOOK VIII. 351 bituminous, then the bitumen bums and can be smelled. These furnaces have a structure hke the structure of the furnaces in which ore is smelted, except that they are open in front ; they are six feet high and four feet wide. As for this kind of furnace, three of them are required for one of those in which the cakes are melted. First of all they are roasted in the first furnace, then when they are cooled, they are transferred into the second furnace and again roasted ; later they are carried to the third, and afterward back to the first, and this order is preserved until they have been roasted seven or nine A—Cakes. B—Bundles of faggots. C—Furnaces. END OF BOOK Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Agricola, Georg, 1494-1555; Hoover, Herbert, 1874-1964. New York, Dover Publications
Size: 1637px × 1526px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthoragricolageorg14941555, bookcentury1900, booksubjectmin
