Holsts Studies in Glacial Geology. 589 
of the subject would include an account of the beautiful polished 
celts of jade found in the tumuli, of the gold and bronze ornaments, 
of the pottery, the decoration, the art, of the tools and implements 
of this early people which cannot be presented within the limits to 
which this paper must be restricted. I omit, for the present, the 
cromlechs, the places of incineration, the Roman remains, and many 
other subjects of equal interest. Perhaps at some future time I 
may refer to them. 
DR. N. O. HOLST’S STUDIES IN GLACIAL 
GEOLOGY. 
RY DR. JOSHUA LINDAHL, 
WE have before us two pamphlets by the Swedish geologist, Dr. 
Holst, of Stockholm. One of them bears the title, “Om de 
glaciala rullstensiisarne ” (“On the Glacial Gravel-Osar ”1); the 
other, “ Berättelse om en i geologiskt syfte företagen resa till Grön- 
land ” (“ Report on a Voyage to Greenland for Geological Investi- 
gations” 3). The subject of these papers has so much bearing on 
the geology of our own country, and is so ably treated by their 
author, that we have thought it desirable to present the following 
condensed translation of them. 
In the first-mentioned paper Dr. Holst propounds his new theory 
of the origin of glacial osar. 
The history of the development of this theory is, briefly, the fol- 
lowing : Hisinger (in some cases), Martins, Chambers, A. Erdman, 
Torell, and others, explained the said formation as ancient sea- 
Shores. Hisinger (in other cases), v. Helmersen, Térnebohm, 
Levin, Jernström, and others, assumed that a vast deposit of sand — 
and mud covering- the country had been cut through by rivers, 
whose beds were gradually filled with stones and gravel. Later 
, Geologiska Föreningens i Stockholm Förhandlingar, 1876. No. 31 
Band HI., No. 3), pages 97-112, 
n Sveriges Geologiska Undersökning. Afhandlingar och uppsatser. 
r. C, No. 81. Stockholm, 1886. Pages 1-68. ; 
