mountain bare of snow that this expedition met with on its route. A
number of the stones from Scott's Nunatak were brought away because
they were thickly overgrown with lichens. These specimens of lichens
have been sent to the Botanical Museum of the University.

A first cursory examination of the material was enough to show
that the specimens from Mount Betty and Scott's Nunatak consist
exclusively of granitic rocks and crystalline schists. There were
no specimens of sedimentary rocks which, by possibly containing
fossils, might have contributed to the determination of the age of
these mountains. Another thing that was immediately apparent was the
striking agreement that exists between the rocks from these two places,
lying so far apart. The distance from Mount Betty to Scott's Nunatak
is between seven and eight degrees of latitude.

I have examined the specimens microscopically.

From Mount Betty there are several specimens of white granite, with
dark and light mica; it has a great resemblance to the white granites
from Sogn, the Dovre district, and Nordland, in Norway. There is one
very beautiful specimen of shining white, fine-grained granite aplite,
with small, pale red garnets. These granites show in their exterior
no sign of pressure structure. The remaining rocks from Mount Betty
are gneissic granite, partly very rich in dark mica, and gneiss
(granitic schist); besides mica schist, with veins of quartz.

From Scott's Nunatak there are also several specimens of white granite,
very like those from Mount Betty. The remaining rocks from here are
richer in lime and iron, and show a series of gradual transitions
from micacious granite, through grano-diorite to quartz diorite,