ON THE FAUNA AND FLORA OF THE TRIAS OF THE BRITISH ISLES. 501 



They were from Mr. J. Fielding's quarry, adjoiuiug the workihgs in which 

 the bones of Hyperodapedon ^ were found. The beds are in the Lower 

 Keuper Sandstone, and must have been formed under conditions quite 

 similar to those yielding footprints in Cheshire. Both Rhynchosauroid 

 and Cheirotheroid prints are frequent. This print does not, however, fall 

 readily into either of these classes ; it therefore seems advisable to give it 

 a distinctive letter. 



OLA five-toed form, the three middle toes strongly iDipres.sed ; 

 they are joined at the base and widely divergent, and 

 are of nearly equal length, about od mm. in the examples 

 seen. They are very slender, and taper evenly to the 

 extremity, ending in a sharp nail. There is a trace of a 

 ball or pad in their rear. On each side a very short 

 digit (I. and V.) projects at about right angles to the axis ^//» ^" 

 of the foot, in some cases even inclining backwards. ^^ ^^ . 

 There is no doubt as to the presence of these digits, ^ ^^^ ^j^.^ 

 though tliey are so slightly marked that at first sight the 2 ' ■ 

 print resembles the three-toed prints from the Connecticut Valley. 



There is a slight trace of what may be the Manus, but it is too iuqier- 

 fect for description. 



It is hoped that further more perfect specimens may shortly be found, 

 now that those on the spot are on the alert. I should like to record the 

 obligation geologists are under to Mr, Fielding for the facilities he has so 

 leadily given for research in all his quarries. 



The slab [Plate III.] which is a strongly ripple-marked flaggy sand- 

 stone, was secured from the North Staffordshire Field Club, and is at 

 present in the Hanley Museum. 



Erratum. — Eeport for 1905, p. ] 67, lines 22 and 24 : for ' Giboni ' ti7i(l ' Gibon,' read 

 ' Gilioni ' a7id ' Gihon.' 



Composiliori wild (Jri(jin uf tke Cnjskdlhui Mod's uf Amjleseij. — Bepo't 

 of the Committee., consisting of Mr. A. Harker (Chairman), Mr. 

 E. Greenly (Secretary), Mr. J. Lomas, and Dr. C. A. Matley, aj)- 

 liomted to enable Mr. E. Greenly to comidete Ids liesearcJies thereon. 



The work for which this Committee was appointed is proceeding, and in 

 presenting this Interim Report the Committee ask to be reappointed, 

 with the addition of Professor Orton. The laboratory generously 

 equipped by the University College of North Wales for the special pur- 

 pose of Anglesey petro-chemical research, was in September 1905 put 

 into the charge of Mr. John Owen Hughes, B.Sc, a senior student of the 

 College. 



In January, however, Mr. Hughes was appointed Junior Demonsti'ator 

 in Chemistry, and his time thereby restricted and the rate of progress 

 diminished. 



The problem selected for attack at the outset was that of the origin of 

 the hornfels and other metamorphic rocks associated with the Plutonic 

 Complex of the heart of the Island, a subject on which widely divergent 

 views have hitherto prevailed. This research is still going on. When it 



' Now iu the British Museum. 



