604 



ME. C. B. WEDD ON THE 



[JN'ov. 1898, 



Pecten large sp. 



Pecten small sp. ? 



Perna mytiloides ? , Lam. (or P. sub- 



plana ?, EtalL). 

 Pholadomya deceoncostata, Roem. 

 Pleuromya Voltzii, Kg. 

 Quenstedtia sp. 

 Trichites sp. 

 Trigonia Meriani, Ag, 



Brachiopoda. 



Terebratula insignis var. maltonensis, 

 Waldheimia sp. 



ECHINODERMATA, etc. 



Cidaris florigemma, Phil, (a few 



spines). 

 Echinobrissus scutatus, Lam. 

 Holectypus de'pressus, Leske. 

 Hyboclypus gibberulus, Ag. 

 Pygaster umbrella, Ag. 



Vermilia sulcata, Sow. 



Montlivaltia disj^ar, Phil. 



Holcosjpongia glomerata 1 (Quenst.). 



At High Pen Earm, less than \ mile north-east of the Northern 

 Quarry, a small quantity of rock was recently thrown out in 

 deepening a well. By the kindness of the farmer I was enabled 

 to examine this when newly excavated. The bulk of the material 

 consisted of a hard, bedded, oolitic (or rather pisolitic) limestone of a 

 deep bluish-grey colour when wet, the pisolites being darker outside, 

 and giving the rock a spotted appearance. A small quantity of the 

 upper part was softer than the rest, and seemed more marly, perhaps 

 merely because it was near the previous floor of the well. The rock 

 was said to increase in hardness downwards, and at the bottom was 

 so hard as to emit sparks when struck with the pickaxe. It wai? 

 stated by the farmer that the well had been deepened to a depth of 

 18 feet, and that formerly another well had been sunk a few yards 

 away to a depth of 20 feet without piercing the limestone. From 

 about two wheelbarrow-loads of material from the first-named well 

 the writer obtained : — 



O'pis Phillipsi, Mor. (several). 



CoUyrites bicordata, Leske. 

 Echinobrissus scutatus, Lam. 

 Holectypus de'pressus, Leske (several). 



Vevmilia sulcata, Sow. 



Serpula sp. 



Pentacrinus, stemi-joints and ossicles. 



Montlivaltia ? (or Thecosmilia ?). 



Ammonites (Perisphinctes) plicatilis. 

 Sow. (several pieces). 



Littorina Meriani, Groldf. (two spe- 

 cimens somewhat crushed in the 

 rock). 



Pleurotomaria reticulata. Sow. 



Dentalium '? 



Exogyra nana. Sow. 



Lithodomus inclusus, Phil. 



The fauna is substantially the same as that of the Northern 

 Quarry, but the rock in this well seems more fossiliferous, and 

 Ammonites plicatilis more abundant. 



A feature of interest is the occurrence in the hardest oolite of 

 many small lumps and streaks of soft bluish-black clay. The streaks 

 were seen lying at various inclinations in the same piece of rock, 

 and the lumps of clay were often more than a cubic centimetre in 

 bulk. Many ossicles of Pentacrinus and a few stem-joints occurred, 

 all blackened and apparently worn and rolled. Though the earlier 

 well was sunk 2 feet deeper without piercing the limestone, still 

 these clay-inclusions and the rolled and blackened joints of Penta- 

 crinus suggest the proximity of a clay-bed, and the influence of 

 current-action. Indeed the farmer stated that the limestone was 

 replaced laterally by a clay of the same appearance, a little farther 



