The following is a brief summary of the geological features : 
Ridge I consists entirely of quartzyte conglomerate with a few 
layers of argillyte striking N. 30 E. (by the compass) and 
dipping about 45 0 E. SE. Ridge II consists of the same rocks. 
The ledge extending from points 6 to 33 is a plane of stratification, 
dipping 4^°—50° E. SE., but on the hillock, point 5, the dip 
changes to 50°—6o° W. NW., and the synclinal thus formed 
probably extends to the northern portions of the ridge. Ridge 
III consists of three beds of mica schist alternating with two of 
hornblende schist; Ridge IV of one bed of hornblende and one 
of mica schist; Ridge V of two beds of hornblende with an 
intervening one of mica schist. Ridge III, IV and V thus 
consist of five beds of mica schist alternating with five of horn¬ 
blende schist, all with a W. N W. dip of 45 0 —70°. In places the 
hornblende schist is very chloritic and contains a little mica and 
calcite, or is traversed by veins of zoisite. The mica schist in 
places passes into a siliceous schist and at point 37 becomes a 
finely laminated, dark grey slate. Ridge VI consists of a 40' 
bed of argillyte and of quartzyte conglomerate which, with Ridge 
VII, forms an anticlinal. The vertical thickness of the conglom¬ 
erate and its associated argillyte is about 750', and that of the 
hornblende and mica schists 950', giving a total of 1700'. These 
facts are shown in the sections (PI. II) which were con¬ 
structed along the dotted lines on (PI. I). The vertical scale is of 
course exaggerated. The beds numbered 1 are quartzyte con¬ 
glomerate ; No. 2 is argillyte; 3, 5, 7, 9, n are mica schist; 4, 
6, 8, 10 and 12 are hornblende schist. No. 2 reappears east of 
section B'. A considerable magnetic attraction exists in the 
vicinity of Ridge VI on the lowland, which may be due either to 
the minute crystals of magnetite disseminated in the conglomerate 
or to the adjoining hornblende schist. 
CONCLUSIONS. 
In the hornblende, chlorite, calcite and zoisite we have evidence 
of the presence of two substances, lime and magnesia, which are 
not present in the adjoining conglomerates except in infinitesimal 
quantities. The repeated alternation of mica and hornblende 
schists is attributable to the metamorphism of chemically difier- 
ent sediments, the mica containing a larger percentage of potash 
