Post-tertiary Beds of Grinnell Land^ &c. 483 



abdomen greyish brown : under surface of wings brown, costal 

 margins whitish, spotted with brown ; pectus dark brown, legs 

 paler ; venter whity brown ; an ochreous tuft on each side at 

 the base. Expanse 3 inches. 

 Yokohama (Jonas). 



LX. — The Post-tertiary Beds of Grinnell Land and North 

 Greenland. By H. W. Feilden, F.G.S., C.M.Z.S., Natu- 

 ralist to the late Arctic Expedition ; and Note by J. Gwyn 

 Jeffreys, LL.D., F.K.S. 



In a paper written by Dr. Gwyn Jeffreys, and read at the 

 Plymouth Meeting of the British Association, 20th Aug., 

 1877, and subsequently printed*, the author directs attention 

 to the Post-tertiary fossils procured in the late Arctic Expedi- 

 tion. My intention now is to supplement that paper by the 

 addition of a few species of Mollusca which had not been 

 submitted to Dr. Gwyn Jeffreys when he published his list, 

 and to add a little information in regard to the structure and 

 extent of these recent deposits, with a notice of the Mamma- 

 lian and other remains discovered in them. 



The localities whence the fossil Mollusca examined by 

 Dr. Gwyn Jeffreys were brought are recorded in his paper, 

 and are numbered by him stations 1 to 12. Nos. 1 and 9 of 

 his list embrace various localities in the vicinity of Floeberg 

 Beach, the winter quarters of H.M.S. 'Alert,' lat. 82°27'N., 

 long 61° 42' W. This list of stations by no means exhausts 

 the whole area over which the Post-tertiary deposits are spread, 

 and from which the collections made by members of the 

 expedition were derived ; for at nearly every point visited in 

 Smith Sound and northwards, either on the Grinnell-Land or 

 Greenland shores, where the snow-covering was wanting, evi- 

 dences of recent elevation were traced. 



This elevation of the land in the northern circumpolar 

 regions has long since been brought to the notice of geo- 

 graphers and geologists ; and the subject has been treated in a 

 very able and comprehensive manner by Mr. Ilcnry H. 

 Howorthf. The conclusion arrived at by that author is fully 

 confirmed by our observations made in Grinnell Land and 

 North Greenland, which substantiate his opinion that the land 

 which " surrounds the North Pole is undergoing a general 



* Ann. & Mag. Nat. Hist. Sept. 1877, pp. 229-242. 

 t Journ. Rov. Geogr. Soc. 1873. 



33* 



