is of later origin than the ordinary granite!. The first notice 
of the occurrence of newer abyssal rocks in South Greenland 
is due to Giesecke, but he does not express any opinion re- 
garding their age relative to the red sandstone. 
In 1828 С. Pinger visited Julianehaab and Igaliko and some 
years later he published a description of the red sandstone 
with its porphyry-dykes*. The indefatigable H. Rink who, about 
the middle of the last century, made exhaustive and valu- 
able contributions to the scientific knowledge of Greenland, 
strangely enough, scarcely occupied himself with the igneous 
rocks of Julianehaab, and it was not until the year 1876 that 
more light was thrown upon the geology of these rocks. 
In that year the Danish Government began a series of 
systematic scientific investigations in Greenland, and the first 
expedition, that of К. J. V. Steenstrup who was accompanied by 
С. Horm and A. Korserup made a topographical, geological, and 
archeological reconnaissance of the whole country around Ju- 
lianehaab. Among the chief results may be mentioned a topo- 
graphical and geological sketch-map of the area north of this 
settlement and a brief description of the geographical and geo- 
logical conditions”. Dr. Sreexsrrur revisited the country in 1877, 
but almost the whole collection of minerals and rocks which he 
had brought home from these expeditions was lost when the 
Castle of Christiansborg, in Copenhagen, was destroyed by fire 
in 1884. 
In 1888 and 1899 Dr. Sreeystrup made other journeys to 
Julianehaab, chiefly for purposes of archeological and practical 
interest. On those occasions he took opportunity of making 
1 С. Г. GIEsSECKE, The mineralogical Geology of Greenland (1816). Re- 
printed in T. Rupert Jones, Manual of Greenland, pp. 330 and 332 
(London 1875). 
? C. PINGEL, Om den, af Porphyrgange gjennembrudte, rede Sandsten i 
det sydlige Gronland. K. Danske Videnskabernes Selskabs Skrifter (4), 
X, 1843. 
3 Meddelelser om Grønland. II, 1881. 
