LFBBOCK ON THE ANTIQUITY OF AT AN. 269 



DESCRIPTION OF THE FIGURES. 



Plate VII. — A flint instmment found near Abbeville; slightly reduced. Our 

 artist has been so careful to present a faithful imao-e of 

 this interesting specimen, that he has even copied exactly my 

 memorandum as to the place and date of its discovery. 



Wood Engravings. — 



Fig. 1. Section taken in a pit close to the Joinville Station. 



b. Red angular gravel, containing a very large sandstone 



block. 

 d. Grey subangular gravel. 



Fig. 2. Section at St. Acheul near Amiens. 



a. Brick earth, with a few angular flints. 



b. Red angular gravel. 



c. Marly sand, with land and freshwater shells. 



d. Grey subangular gravel, in which the flint implements 

 are found. 



e. Coffin. 

 /. Tomb. 



Fig. 3. Diagram to illustrate deposit of loess and gravel. 



a' Loess corresponding to a contemporaneous with gravel a 

 2-' Loess „ „ „ b 



c' Loess „ „ „ c 



1. Level of valley at period a 



2. „ „ b 



3. „ present. 



Fig. 4. Section across the valley of the Somme at Abbe\-ille, after 

 Prestwich ; the length is however reduced to one-third. 



XXVII. — On the IVIammals, Birbs, etc., of the Mackenzie 

 EivER DiSTEiCT. By Bernard H. Eoss, Esq. 



Fort Simpson, McKensie's River District. 

 10th November, 1861. 



Mt r>EAR Sir John,— I am happy to acquaint you that I have 

 procvtred from the Toueon, through the kindness of Mr. Lockhart, 

 who is in charge of that establislnneut, two teeth and three tusks of 

 the Elephas primigenius, or what Prof. Leidy calls, in his " Ancient 

 Fauna of Nebraska," Elephas americanus. Two of the tusks are 

 moderately-sized portions ; but they show clearly the great cuiwe 

 that distinguishes the fossil from the existing species of elejohants. 

 The third tusk is of much larger dimensions, not much decayed, and 

 nearly straight. It possibly may belong to some other animal. 

 How curious it is that a tradition exists up the Peace Eiver of some 

 immense animal. 



If you do not require the specimens, after examination, might I 

 suggest the British Museum as a proper place to deposit them in ? 



