'872 
THE GEOLOGIST. 
I have described saccharine and finer-grained quartzites in this re- 
lation. I have now to mention that at Kodos, sixty miles from 
the mouth of the Orange E-iver, 
^•TTTT-^ strata of limestone rest in ex- 
^<<^L'!j/,{/llh-^. hV//'^^^<h^\ tensive masses on the mountains, 
^ lioi'izontallv ; while 
■:iJlll!jn'iL'lli/r*9ii^^ below, only a comparatively few 
a b c b a h d beds of saccharine and other va- 
Fig. 3.— SeotioiitlirongliKlein PoordenPoorl. rieties of crystalline limestone 
(Pinchin and Rubidge.) wei-e interstratified with the 
aa, quartzite; bhb, slate; c, porphyiy (Bain); gneiss. 
poiThyrj'. ' J hardly have thought 
it necessary to contest the igneous origin of marble at the present 
day, had I not seen in your Magazine the account of a recent experi- 
ment. 
SOME ACCOUNT OF BAEEETTIA, A NEYf AND EE- 
MAEKABLE FOSSIL SHELL FROM THE HIPPUEITE 
LIMESTONE OF JAMAICA. 
By S. p. Woodward, F.G.S. 
The fossil represented in the accompanying figures is one of that 
kind whose discovery severely tests the faith of the naturalist in his 
previous conclusions, and may appear to raise a suspicion not only 
respecting the sufiiciency of his data, but even as to the correctness 
of his method of investigation. Almost any person, at first sight of 
the specimen, would think he was looking at a coral^ and it would 
seem like an attempt to impose on one's credulity to say it was a 
bivalve shell, like an oyster or a clam.* 
Yet there is no doubt it is a kind of Hippiirife, although the rays 
give it a novel and extraordinary character. The discoverer had quite 
satisfied himself on this point before he brought it to England and 
placed it in our hands. It was found last year (January, 1861), by 
Mr. Lucas Barrett, F.Gr.S., Director of the Geological Survey of the 
British AYest Indies, in the parish of Portland, in the north-east of 
* This is not the only case of the sort. The genus Goniophyllum, one of the " Zo- 
antharia rugosa," established by Miloe-Edwavds, is apparently identical with Calceola, 
the well-known bivalve fossil of the Eifel, placed by Lamarck with the " Rudistes," and 
admitted as a Brachiopod, with a sign of doubt, by INIr. Davidson and myself. Gonio- 
phyllum pt/ramidale is a scarce fossil of the Upper Silurian at Dudley and Malvern, but 
not uncommon in the Baltic island of Gothland. It was described as a Calceola by 
Girard in 1842. Another species, which is so like Calceola sandalina that Murchison 
and Verneuil assumed the existence of Devonian strata in Grothland, on the strength of 
its occurrence, has small rootlets of attachment along the borders of its "hinge-area," 
and a vesicular interior, like Cyst 'iphjUum. After carefully examining a series of exam- 
2)les belonging to M. Lindstrom, of Wisby, we can only say that ihey are probably w^iV/^^r 
Brachiopoda nor Zoantharia, although very like each in some respects. 
