HI56 The American Geologist. November, i»97 
The deposit in the peat-bog at Gottersater is as follows, beginning at 
the top: 
60 ctm. — Peat formed of Sphagnum. (Sub-Atlantic period.) 
.35 ctm. — Bed of stumps and mould. (Sub-boreal period.) 
125 ctm. — Lacustrine mud (of the Atlantic period). 
The fragment of a pot was found in this part of the deposit 2 meters 
from the surface. The mud represents only apart of the Atlantic peri- 
od — about half, the rest being marked by the marine clay of the Lito- 
rina sea that underlies the whole bog. 
These results from Sweden are of interest for comparison with the in- 
dications of climate, etc., in geologically recent times that have been 
found in America. G. f. m. 
Notes on the Structure and Development of the Turf moor •'Stormur^' 
ill Ge.strikland, by Gustap Hellsing. (Bull. Geolog. Inst. Upsala, 
No. 4, vol. II, pt. 2. 1895.) This article describes an exploration of the 
large peat bog of Stormur near Gefle in Sweden. The examination was 
made along ditches cut to drain the bog. The bottom of the section 
shows Joldia marl (perhaps aLedacIay). Then a thickness of about 
one meter of pond and marsh mud. Then a layer of stumps about one- 
fifth of a meter (indicating an old forest growth). Then a Carex turf of 
about one-third to one-fiftli of a meter, terminating at the present sur- 
face of the bog. 
The depth ascertained in this part of the bog is not so great as meas- 
urements at other bogs in Sweden have shown, but it gives an epitome 
of bog-growth in Sweden and tells a story similar to the others. 
The growth of this bog began earlier than that above referred to as it 
is situated only 20 meters above the sea-level. The middle layer of 
stumps corresponds to that of the bog of Gottersater, indicating a drier 
climate than preceded or succeeded this time (the boreal period). 
The special feature of this investigation is the determination of the 
diatoms in the deposit by Miss Astred Cleve. 
The brackish water and salt water forms are found prevailingly in the 
lower part of the deposit, and the bed marking the boreal period is de- 
void of diatoms. 
These results are interesting as showing how these minute organisms 
may aid in determinating the prevalence of certain physical and climat- 
ic conditions, g. f. m. 
RECENT PUBLICATIONS. 
I. Government and State Reports. 
U. S. Geol. Survey, 17th Ann. Rept., 3 pts. in 4 vols., 1896. Pt. I 
(xxii and 1076 pp., 67 pis., and maps): Report of the Director, C. D. 
VValcott; Magnetic declination in the United States, Henry Gannett; 
A geological reconnaissance in northwestern Oregon, J. S. Diller: Fur- 
ther contributions to the geology of the Sierra Nevada, H. .W. Turner: 
Report on coal and lignite of Alaska, W. H. Dall: The uintaite (gilson- 
