964 The American Naturalist. [November, 
Have European archeologists overlooked the fact that 
there are later Stone Age quarries abroad, which, like the 
American sites, tell the story of blocked out “ wasters” resem- 
bling gravel forms? 
Postponing a few words of suggestion as to the first three 
questions, I venture here, on the strength of several recent 
visits to the Somme Valley, to discuss the last four, and first 
the question of 
POSITION IN UNDISTURBED GRAVEL. 
It is well-known that the Somme having cut its valley 
through the secondary chalk of northern France, had, in 
Quaternary times, washed up beds of gravel at bends, notably 
at Abbeville and Longpré, and at St. Acheul and Montieres 
(suburbs of Amiens) It was in these that Boucher de Perthes, 
after a long battle, was allowed, in 1859, to have really found 
his “ haches” or * coups de poing " in place. 
Visiting Abbeville in November last, and securing the kind 
assistance of M. G. d'Ault du Mesnil, a well-known geologist 
and paleontologist and member of the Ecole d'Anthropolo- 
gie, who, as an inhabitant of Abbeville, had devoted much 
study to the gravels, I examined all the exposures near the 
town, then those of St. Acheul and Montieres, and finally the - 
cuts at Chelles where the Marne has done the same work. 
The sand and gravel pits (see Fig. 2, infra) A, Leon; B, 
Chemin de Poste; and on the open land, * Champ de Mars " 
Menchcourt A Somme 
Quarry 
FIG 2 
e dmn showing the niii relative position of the Quaternary gravels to the 
iver Somme at Abbeville (Dept. Somme) vido and A the Leon, B the Chemin 
de Poste, and C the Menchcourt sand and ballast quarries, from which chipped speci- 
mens and fossil bones have been obtained. 
