me. With respect to the animal-remains discovered in the high terrace, it was found that the surface-soil contained so many hones of recent animals which dropped down into the cuttings, that it was difficult to distinguish them from any that might be found in the gravel. The whole were therefore submitted to Mr. Busk, who has kindly undertaken to identify them, and whose report upon them will be read to the Meeting. (See p. 465.) The position of one tooth of Elephas primigenius may, however, I think, be regarded as fixed; it was found in the gravel, near Section H, in Lorne Terrace, at a depth of 7 feet. I did not see it taken out of the gravel; but it was handed to me shortly after it was discovered; and I have no reason to suppose, nor do I think there is any likelihood of its having been brought to this place from any other deposit of gravel. The nearest gravel-pit then being worked was a mile and a half distant; the bones of that gravel-pit were being collected for me by other workmen at the time; and there could be no object in transferring this bone from one pit to another when they knew that they would receive the same remuneration, from whichever pit it came. This, however, to the best of my belief, is the first tooth of Elephas primigenius which has been found in the high-terrace gravel. The mid terrace is prolific in animal-remains, as has been already shown by the researches of Professor Morris.
Fig. 5.—Section across the Thames Valley from Acton to Richmond Park.
(Vertical scale 10 times the horizontal.)
I now turn to the Mid-terrace gravel. About a mile and a half south of the Church field at Acton, in a place called Brown's Orchard, between Acton Green and the Brentford Road, some excavations were being made to obtain gravel. The position of this spot, with reference
