 No. 1 in the fire for a few minutes, it gradually assumed the colour of the gray tesserse, the change no doubt being due to some alteration in the chemical conditions of the iron with which the stone is slightly charged. 4. The dark colour of the lias...  Proceedings of the Cotteswold Naturalists' Field Club - 48 페이지저자: Cotteswold Naturalists' Field Club - 1853전체보기 - 도서 정보
 | James Buckman, Charles Henry Newmarch - 1850 - 256 페이지
...The dark tint of the liassic stones caused them to be used largely, in the composition of tessellated pavements, as much of the outline of the design, and...composed of this stone, which, judging from an Ammonite shell, found in one of the tessellae, was obtained from a band of argillaceous limestone, which separates... | |
 | 1850 - 580 페이지
...the rock No. 1 in the fire for a few minutes, it gradually assumed the colour of the gray tesserse, the change no doubt being due to some alteration in...division of the lower lias in the vale of Gloucester are separated, and no doubt the stone in question was brought from that locality. The artificial tessera... | |
 | 1850 - 1174 페이지
...the rock No. 1 in the fire for a few minutes, it gradually assumed the colour of the gray tesserae, the change no doubt being due to some alteration in...division of the lower lias in the vale of Gloucester are separated, and no doubt the stone in question was brought from that locality. The artificial tessera... | |
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