40 BULLETIN OF THE 
Mr. Wadsworth says of these specimens : “Nos. 1, 3, 4, 12, 13, and 17 are 
chlorite schists, composed principally of chlorite in leaves, granules, and fibres, 
the fibrous forms predominating. The chlorite is of a light or brownish-green 
color. Kaolinized feldspar is also very abundant ; the other minerals being 
opacite, brown mica, and pyrite ; the opacite arising partly from the alteration 
of the pyrite, "These schists are evidently much metamorphosed. 
“No. 21 is a chloritic mica-schist, very fine-grained, and made up chiefly of 
a ground mass of chloritic matter holding numerous irregular flakes of brown 
mica, and a very few grains of quartz. 
“No. 5 is a chloritic sandstone composed of quartz grains and chlorite, with 
some kaolinized feldspar and crystals of magnetite. The quarts contains fluid 
inclusions, and in some of the grains occur the long black microlites, so com- 
mon in the quartz of granites. This, together with the form of the grains, 
would indicate that the sandstone was derived from the disintegration of 
granitic rocks,” 
NOTE C. 
REMARKS ON THE STRATIGRAPHICAL GEOLOGY. 
The distribution and lithological characters of the different bed-rocks in the 
region has already been given (page 22). The distribution is also indicated 
on the map by geological colors, and the direction of the dip is indicated 
by arrows, the small circles on the arrows marking the spots where the obser- 
vations were taken. 
The limits of the band of chloritic rock, which is represented on the map as 
extending along the crest of the Canaan and Lebanon Range, could not be 
ascertained with certainty, but wherever exposures were observed along the 
crest, a rock entirely different from that of the great mass of the range was 
found. This rock has a decided green color, is very compact, and cannot be 
split into thin plates, and this assemblage of characters distinguishes it at once 
from all the other rocks of the region, except the narrow band of the same 
rock on the other side of the Shaker Valley. Two typical exposures of the 
rock in this band have been described, namely, the chloritie schist of Fry's 
Hill, and the chloritic sandstone of Douglas Knob ; how much of the band is 
made up of each kind of rock, it is, from lack of a sufficient number of expos- 
ures, impossible to determine. 
The limits of the two narrow bands of limestone on the western slope of the 
Richmond Range are not known with certainty, the location of one of the 
bands being based on only two, and that of the other on only three exposures. 
The boundaries between the schists of the Richmond and of the Lenox 
Range and. the limestone of the Richmond Valley were fixed with tolerable 
certainty, also that between the schist of the Lenox Range and the limestone 
of the Lenox Valley, although along none of these boundaries was the direct 
contact of the two rocks observable, 
