Notices of Memoirs — The Palceoliths of Famham. 29 



II. — The Pal^oliths of Earnham. 1 By Henry Bury, E.G.S. 



THE information contained in a previous paper on the same 

 subject (Proc. Geol. Assoc, vol. xxiv, pp. 178-201) is here 

 revised and enlarged. The implements of the Alice Holt Plateau 

 (including Terrace A) are usually large (5 to 8 inches long), and very 

 few are later than the Chellean period. On Terrace B, on the 

 contrary, the majority of unabraded implements are small (3 to 

 4 inches long), and quite 40 per cent are Acheulean. There are also 

 manj T flakes, used as scrapers, which may be Mousterian. Terrace C, 

 beyond a few Le Moustier flakes, yields no clear evidence of its age ; 

 but it is not impossible that the valley may have been excavated to 

 this depth in early Chellean times. On Terrace D unabraded 

 implements are extremely rare, but among them are a few which 

 may be of Le Moustier age. Another terrace (E) about 20 feet above 

 the river is covered with a thick layer of drift, but has so far only 

 yielded one implement. 



EEVIEWS. 



I. — Apractocleidvs teretepes : a New Oxfordian Plesiosaur 



IN THE HlTNTERIAN MUSEUM, GLASGOW UNIVERSITY. By W. II. 



Smellie, M.A., B.Sc. Trans. Boy. Soc. Edin., vol. li, pt. iii, 

 1916. 



IN this paper the author gives a very detailed account of the 

 remains of a Plesiosaur collected by Mr. A. N. Leeds in the 

 Oxford Clay of Peterborough. The skull and caudal region are 

 missing, but otherwise the skeleton is nearly complete. In many 

 respects this form is intermediate between Cryptocleidus and Tricleidus. 

 Thus, in the fore-paddle the humerus articulates distally with the 

 radius, ulna, pisiform, and a small accessory ossicle, as is the case in 

 Tricleidus. On the other hand, in the shoulder- girdle the inter- 

 clavicle is very small or absent, and the triangular clavicles meet 

 extensively in the middle line as in Cryptocleidus. For these and 

 other reasons the author has established a new genus for the reception 

 of this form. Many of the characters, however, which are regarded 

 as indicating the higher organization of this type, are certainly merely 

 the result of the great extension of the ossification of the bones 

 consequent upon the advanced age of the individual. Such characters 

 are the extension forward of the scapulae in advance of the clavicles, 

 and the elongation of the dorsal rami of the scapulae and of the 

 postero-lateral processes of the coracoids. 



This interesting paper is illustrated by nine text-figures and one 

 plate. 



1 Bead before the Geologists' Association, December 3, 1916. 



