Upper 

 Galleky. 



Wall-cases 

 6 and 7. 



252 



AMYGDALOID. 



quently, on the surface, these are re-dissolved out, and the 

 rock then resumes its original structure, or the emptied 

 cells are wholly or partially filled a second time with 

 extraneous matter. — A. C. Ramsay. 



237 and 238. — Amygdaloidal greenstone ("toadstone"). 

 A greenstone base, containing cavities filled with kernels of 

 calc spar. — Allport, Bake well, Derbyshire. 



239. — Amygdaloidal greenstone (" toadstone "), com- 

 posed of greenstone containing cavities and cracks filled 

 with kernels and veins of calc spar.-*-Mme near Hartshill 



Hall, Derbyshire. 



240. — x\mygdaloid, composed of a base of greenstone, 

 containing numerous cavities filled with kernels of calc spar, 

 some of which have been subsequently removed by infiltra- 



tion. 



Ay 



241. — Large kernel of calc spar, detached from the above 

 amygdaloid. 



242. — Amygdaloid, containing a portion of a large kernel 

 of quartz. — North of Colzean, Ayrshire, Scotland. 



243. Amygdaloid, containing cavities lined with ker- 

 nels of calc spar and others lined with crystals of quartz. 

 Cliff, near Colzean, Ayrshire, Scotland. 



244. Amygdaloid, with kernels of calc spar and a few 



of quartz. — Sea cliff, north of Colzean, Ayrshire, Scotland. 



245. — A3IYGdaloid, containing cavities filled with kernels 

 of calc spar y quartz, and chlorite. — Sea cliff, north of Col- 

 zean, Ayrshire, Scotland. 



246. — Amygdaloid, composed of kernels of calc spar in a 

 greenstone base. — Charfield Green, Gloucestershire. 



247. — Amygdaloid, composed of nests of epidote in a 

 base of greenstone. — Caer Caradoc, Church Stretton, Salop. 



248. — Amygdaloid, composed of kernels of decomposing 

 green earth, and compact mesotype, in a greenstone base. 

 Caradoc Hill, Church Stretton, Salop. 



249. — Amygdaloidal greenstone, the cavities filled 

 with calc spar, which have almost entirely been removed. 

 Oapr Fawr. Carneddau. Builth. Breconshire, 





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