506 SMITHSONIAN MISCELLANEOUS COLLECTIONS [voL. 48 
“more than 200 m. (?) and the Littorina depression about 100 m.,”? 
with a corresponding rise between. In southern Norway, i. e., along 
the coasts of Skagerak, these oscillations apparently have been com- 
paratively insignificant. Professor W. C. Brégger, in his recent 
admirable publications on the changes of level in this region? sees 
but doubtful indications of the Ancylus depression in Norway 
(Nivaafor., p. 645) and the Littorina depression he finds amounted 
to only 2 to 3 meters at Kristiania (Strandlin., p. 99), a result which 
he characterizes as only “a halt or a discontinuance of the rise accom- 
panied by a slight depression.” Holmboe* and Oeyen* have also 
ascertained a slight depression on Jederen (8-16 meters) though 
it appears to me somewhat doubtful if this is absolutely synchronous 
with the other. 
These depressions which in eastern Sweden were so considerable 
must have had their corresponding rise elsewhere, and as Kristiania, 
according to the above, was near the nodal axis of the reciprocal 
movement, it is reasonable to suppose that the rise on the other side 
of this line must have been correspondingly conspicuous along the 
west coast of Norway north of 60° north latitude. A maximum 
rise of 200 sea-meters at the western edge of. the coast platform 
corresponding to and approximately synchronous with the Ancylus 
depression would therefore appear to be within the possibilities. 
Such a rise® would restore the connection with Scotland and furnish 
easy means for the red. deer and the corresponding portion of the 
Atlantic biota to pass over to west Norway. 
It is not to be expected that such a theory will receive the sanction 
of all the geologists. There is a considerable amount of disagree- 
ment among them as to the interpretation of the various phases of 
the glacial epoch, its climatic and physiographic features. There 
*N. O. Holst, Bidr. Ostersj. Bottn. Vik. Postglac. Geol., 1899, p. 127. 
7Om de Senglaciale og Postglaciale Nivaaforandringer i Kristianiafeltet 
(Kristiania, 1900-1901; xii+ 732 pp.-++ xix pls.); Strandliniens Beliggenhed 
under Stenalderen i det Sydostlige Norge (Kristiania, 1905; viii-+ 340 pp. 
+ xiii pls.) (= Norges Geologiske Underségelse, Nos. 31 and 41). 
* Jens Holmboe, Planterester i Norske Torvmyrer, in Kristiania Vidensk. 
Selsey Siew, IGOR s TaINO. 25.pe tle 
*P. A. Oeyen, Tapes-niveauet paa Jederen, in Kristiania Vidensk. Selsk. 
Shh; 1008) Noman 4a 
*This rise would consequently be represented in the extreme west by 
Jensen’s Fzrde banks (in Norges Geol. Unders., No. 31, 1900, pp. 106-107) 
and by the Rockall bank which Professor T. R. Jones, following Geikie, 
considers postglacial (Notes on Rockall Island and Bank, in Trans. Roy. 
Irish Acad., XXXI, pt. iii, 1897. p. 97). 
