. Bulletin of the Essex Institute. Essex Institute; Natural history; genealogy. TERRA-COTTA ROOFING-TILES. 67 The iron frame was then removed, and the board with its unbaked tile was placed in the sun to dry. The workman informed me that he could make a thousand tiles a day. Fig. 82 shows the iron frame resting on the flannel in position to be filled with clay. The board upon which the unbaked tile is to be transferred is to be seen to the left. Fig. 83 is reproduced from a hasty sketch of a Wurtzburg tiler at work. Large dome-shaped brick ovens were used in baking. w"*5^^ Fig. 83
. Bulletin of the Essex Institute. Essex Institute; Natural history; genealogy. TERRA-COTTA ROOFING-TILES. 67 The iron frame was then removed, and the board with its unbaked tile was placed in the sun to dry. The workman informed me that he could make a thousand tiles a day. Fig. 82 shows the iron frame resting on the flannel in position to be filled with clay. The board upon which the unbaked tile is to be transferred is to be seen to the left. Fig. 83 is reproduced from a hasty sketch of a Wurtzburg tiler at work. Large dome-shaped brick ovens were used in baking. w"*5^^ Fig. 83. the tiles. The structure was flat above, and leading down to the ovens below were small holes two or three feet apart. The fire, having been started, was afterwards fed by pushing into these holes at short intervals small quan- tities of fine coal or coal-dust. The utilization of coal- dust in this way struck me as an economical method of using this waste product. I was informed that ordinary bricks were baked in the same way. iMany old Korean and Japanese roofing-tiles show on their lower side a cloth, mark impression, and doubtless similar methods weie resorted to in their manu- 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 Essex Institute. 1n. Salem, Mass. , Essex Institute
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