572 Reports and Proceedings — Cambridge Philosophical Society. 



topteryx in having the fore part of the frontal broader and the upper 

 tract of the bill less defined, as also in some other characters ; but 

 no comparison of the palatal structure can be made upon the existing 

 specimens. In point of size, taking the Albatross as a term of com- 

 parison, this skull may well have belonged to a bird with wings of 

 the extent indicated by the humerus already described ; and the 

 resemblance of the skull to that of the Albatross would also seem to 

 be confirmatory of the specific collocation of the two specimens. The 

 presence of four small pits or perforations on the only part of the 

 alveolar border which appears to be uninjured, leads the author to 

 conjecture that the bird may have been dentigerous. 



III. — Cambridge Philosophical Society. — Monday, Nov. 10. — 

 Prof. Newton, M.A., F.K.S., President, in the chair. 



The President alluded to the great loss sustained by Science in 

 general, and by the Society in particular, by the death of Professor 

 Clerk Maxwell, who had so recently occupied the position of President. 

 He considered it a great privilege to be able to give expression to 

 the deep and sincere sorrow that every member of the University felt 

 in the death of so distinguished a member as Professor Maxwell. 



The following communication was made to the Society : — 



" On implement-bearing loams in Suffolk," by Mr. 0. Fisher. The 

 author gave an account of two visits paid to the district in which Mr. 

 Skertchly of the Geological Survey has lately discovered flints worked 

 by man, in loams described by him as interglacial. The first of these 

 visits was made in 1876, and the country examined lay chiefly to the 

 north-east of Brandon. The author was not convinced by anything 

 which he then saw of the correctness of Mr. Skertchly's views. But 

 since he saw only a portion of the district which that gentleman had 

 examined, the data were necessarily incomplete. The second visit 

 was made by him at the end of September last, and he then saw sec- 

 tions in the neighbourhood of Mildenhall and Bury St. Edmund's, 

 which convinced him of the truth of Mr. Skertchly's announcement 

 of the occurrence of the loams in question with their implements be- 

 neath massive Boulder Clay in situ. At the brickyard at Culford, near 

 Bury, in particular, the section is unmistakeably clear. Fifteen feet 

 of the ordinary Chalky Boulder Clay, a spur of the great mass which 

 spreads over a large part of the county, is seen covering the stratified 

 loam, and from the loam at this place Mr. Skertchly extracted with 

 his own hands a worked flint which he exhibited to the Society at the 

 reading of the paper. The author did not himself see the Boulder 

 Clay lying beneath these loams at the places where they had yielded 

 implements. He was, however, assured by Mr. Skertchly that when 

 some of the sections were better exposed, this was evidently the case. 

 The loam in question has the appearance of being a fluviatile deposit, 

 and at one place fi-eshwater shells occur in it ; it evidently occurs 

 over a considerable district. 



A discussion took place, in which Mr. Skertchly, Professor Hughes, 

 Dr. Campion, and Mr. E, Hill, took part. 



