107 
In 1892 and 1894 the author obtained a subvention from 
the Carlsberg Fund for mineralogical and petrographical in- 
vestigations of the nepheline-syenites of South Greenland, and 
in the latter year a monograph on the principal constituent 
minerals of these rocks was published’. The geological sur- 
veying of the district of Julianehaab during the summers of 
1900 and 1908 has greatly augmented the collections available 
for the petrographical investigations whose results are stated 
in the following pages. 
ABYSSAL ROCKS: CLASSIFICATION. 
From a geological point of view the igneous rocks of the 
[limausak complex may be divided into three main divisions. 
One division comprises the rocks of what may be called the 
‘stratified batholite’, i. e. the central and north-eastern parts of 
the abyssal complex within which the rocks are arranged in 
almost horizontal sheets one upon the other. These rocks 
enumerated from the top downwards are as follows: — 
arfvedsonite-granite 
quartz-syenite 
pulaskite 
foyaite 
sodalite-foyaite 
naujaite 
lujavrite and kakortokite. 
The second division comprises a number of more indepen- 
dently occurring abyssal rocks which compose the western and 
! Mineralogisk-petrografiske Undersogelser af Gronlandske Nefelinsyeniter. 
Meddelelser onı Gronland XIV. — Some temporary results concerning 
the petrography of these rocks have been published in the section about 
nepheline-syenite in the 3rd edition of Mr. Rosenbusch's Mikroskopische 
Physiographie II (1896) and in his Elemente der Gesteinslehre (1898). 
