1 64 Annals of the Philosophical Club 



to lay bare a vertical face of gravel, about 15 or 16 feet 

 from the surface to the chalk, and some distance back from 

 the old one. In the course of the day five flint implements 

 were found " under the very eyes of the members," the 

 genuineness of which seemed beyond suspicion. Four of 

 them were of a form which at Paris had been supposed to 

 indicate forgery. They had, however, been found where 

 the drift showed signs of disturbance, and a pipe in the 

 middle, reaching down to the chalk, was occupied by a 

 material rather different from the usual stratified gravel, 

 which suggested the possibility that the jaw might have been 

 subsequently introduced. Several members of the con- 

 ference, including Messrs. Milne Edwards and de Quatrefages, 

 expressed no opinion as to the geological age of the bone, 

 though regarding it as contemporaneous with the gravel. 

 Dr. Falconer and Mr. Busk thought that if the latter were 

 really of the same age as the Somme valley deposits, the 

 bone had too recent an aspect to belong to it. Mr. Prestwich 

 remarked that he had known the Moulin Quignon gravel for 

 several years, and that, prior to the discovery of the jaw, 

 very few hdches had been found, and these of the oldest and 

 rudest types. Those since obtained were of a different type 

 and more modern in aspect. That these were not stained, 

 while the surrounding pebbles were so, was a difficulty 

 which, however, was diminished by his having got an un- 

 coloured flint from the couche noire. At first he had doubted 

 the genuineness of jaw and hdches, but he now thought it 

 possible that if the latter were so, the former might be 

 the same. 



June nth, I4gth meeting. Mr. Lubbock described 

 the circumstances under which human skeletons had been 

 found in 1862 at Mesnieres, near Abbeville, as ascertained 

 by himself, Mr. Prestwich. and Mr. Evans. The lower 

 jaw of one of them presented a striking resemblance to that 

 from Moulin Quignon. 



Oct. 2gth, I5oth meeting. Professor Ramsay said that 

 during the past summer members of the Geological Survey 

 liad discovered and mapped terminal moraines in the south 



