^14 SCIENTIFIC NEWS. 



ganie structure; from which it appeared, that these heads 

 consisted of a group of tubuli, now converted into, and en- 

 veloped with stony matters Beside these extraordinary 

 shapes, which projected in relief, Mr. W. observed a variety 

 of very regular white figures, as if painted upon the rock, 

 being even with the surface. They consisted of circles from 

 two inches to half an inch in diameter, ellipses of various 

 eccentricities, and parallel lines both straight and curved. 

 By a careful examination Mr. W. found, that these white 

 figures belonged tothe other class of bodies already described; 

 and that the cylinders were only the internal parts of the 

 same body, the sections of which formed the white circular 

 and elliptical figures. The vast masses of rock, which have 

 fallen down, having separated from the cliff at the divisions 

 between the beds, showed their upper and under surfaces 

 covered with layers of these bodies heaped upon each other, 

 and lying prostrate in every possible direction: and in the 

 joints between the beds, where they were still not separated, 

 they were distinctly seen. The green sandstone and the 

 limestone he found to be the chief repositories of these bo- 

 dies; in the ferruginous sand below the green sandstone he 

 found none, and only a few fragments of cylinders in the 

 blue marl on which the sandstone rests. He traced them 

 upwards into the chert, but they there became rare, and they 

 totally disappeared in the chalk marl. He found them 

 however frequently in the fragments of flint lying on the 

 shore. Mr. Webster having brought away an extensive 

 series of specimens, which he has since deposited in the 

 collection of the Society, submitted them to the examination 

 of Mr. Parkinson, who is of opinion, that they belong to the 

 genus tilcyonium, but that they are of three or four different 

 species, neither of which has been hitherto described. From 

 the resemblance which these bodies bear to a closed tulip 

 attached to its stalk, Mr. Webster suggests, that the name 

 of tulip alcyonium may not be improperly applied, 

 ippn-itea Some observations by James Parkinson, Esq. Mem. Q. S. 



»m Sicily* on the specimens of Hippurites from Sicily, presented to 

 the Society by the Hon. Henry Grey Bennet, Mem. G. S. 

 were read. These specimens Mr. P. considers to be such 

 as demand particular attention, as they possess those cha- 

 racters. 



