272 REPORT — 1894. 



4. It may be remarked that the figured interior of the bipartite carapace 

 of Macrocaris Gorbyi, Miller, referred to in our Tenth Report, at page 468, 

 'Report British Association' for 1893, appears (if looked at upside down) 

 very much to resemble some of the bivalved Aptychopses figured in the 

 'Monograph of Palaeozoic Phyllopoda,' Pal. Soc, 1892, pi. xv., but with 

 a more acutely sagittate outline, and without the definitely concentric 

 umbonal striae. 



If the carapace in the drawing (tig. 43) exposes its ' interior,' it seems 

 to lie unconformably with respect to the body-rings, for they appear to be 

 covered by the carapace upside down. If it normally covered the body, 

 it would show its exterior. 



Is it possible that after death, the attachments of the body and cara- 

 pace having been loosened, the carapace turned quite over, and the parts 

 of the animal floated into a position reverse to what they held in life ? 

 Or have we here two valves and an imperfect body of an Aptychopsis 

 which during decay were washed into a reversed position — that is, with 

 the abdomen projecting from the anterior region, as is not unusual witli 

 some fossil Ceratiocaridce ? 



5. By favour of Dr. Wheelton Hind, F.G.S., we have very lately seer, 

 from Mr. George Wild's collection, some pyritous specimens of what seem 

 to be a very small Estheria in shale from the roof of the Bullion Coal, 

 Lower Coal-measures, lately worked at Trawden, near Colne, in North-east 

 Lancashire. 



6. A specimen of Estheria Dmosoni, Jones (' Geol. Mag.,' 1870, p. 220, 

 pi. ix. fig. 15; ibid., 1876, p. 576; ibid., 1878, p. 101, pi. iii. fig. 2), has 

 been obtained from the vicinity of Five-Islands, Nova Scotia, by Mr. H. 

 Fletcher, of the Geological Survey of Canada. Like a former specimen, 

 it may be from the Horton Series ; and has been sent by Sir W. Dawson, 

 F.R.S., of Montreal, for our e.xamination. 



jExiiloraUon. of ilie GoJf Hole Gave at iJie Heights, Shiirethorns, near 

 SMpton. — Beport of the Committee, consisting o/Mr. R. H. Tiddeman 

 (Ghahinnn), Rev. E. JoNES (Secretarij), Professor W. BoYD Daw- 

 kins, Prolessor L. C. MiALL, Mr. P. F. Kendall, Mr. A. Birt- 



WHISTLE, and Mr. J. J. WILKINSON. 



This cave lies on the west side of a limestone scar on the Heights Farm, 

 and its entrance is about 30 feet above the plain at the foot of the scar. 

 The entrance chamber is 33 feet long and from 14 feet to 26 feet in width. 

 A well-buttressed column of rock supports the roof, forming two archway 

 entrances to the cave. The outlook westward from these entrances is very 

 fine and the platform would be of value to prehistoric man as a shelter. 

 At the north-east corner of the entrance chamber is another cave, here 

 8 feet wide, and which after a short course of 10 feet turns eastward. 

 This latter cave was originally blocked up, and a former tenant of the 

 farm attempted to open it out. He found a few worked flints, a long iron 

 spear-head, and the bones of numerous small mammals. But the ignorance 

 and want of skill of the workers made their finds of little value. In 

 Au<^ust of 1S93 your Secretary made some experimental trenches in the 



