84 The American Geologist. August, i892 
tulco-chloritic schists, which show on the road to the north, lead- 
ing to CunTville, and are flanked on the east by the grey sand- 
stones of the millstone-grit. On the northwest side a large de- 
posit of manganese was worked for some years, a tnnnel being 
driven into the mountain along the contact with the underlying 
schists for nearly 1,000 feet, the ore. which consisted of pyrolu- 
site and psilomelane. occurring at the base of the conglomerate 
in irregular pockets. Operations have been suspended for some 
years, and the workings have all fallen in." 
Of the deposits of wad in New Brunswick the most important 
are those at Dawson Settlement, Albert Co.. where many acres of 
ore are found, the beds varying in extent and depth, and attain- 
ing in some places a thickness of over forty feet, to which point 
the}' have been proved. The deposits are covered throughout 
with peat and peaty matter, having a thickness of about twelve 
to twenty inches, the ore beneath this being found to be practically 
free from impurities. The mode of working is very simple, con- 
sisting of cross trenching, by which means the deposits are 
drained, after this the ore is excavated and dried in pans, the re- 
sult being a dry and almost impalpable powder. 
A partial analysis of the ore by Mr. W. F. Best, of St. John, 
gave: 
Manganese binoxide , 47.0 
Iron oxide 18.0 
Vegetable matter 34.0 
■ Loss 1.0 
Copper trace 
Cobalt trace 
100.0 
Several analyses by Mr. John Burwash gave the following per- 
centages of manganese binoxide: 73.6, 35.5, 58.3, 57.6, 70.7, 
63.4, and an average specimen collected at various points and 
sampled gave 47.4. 
Nova Scotia. — As in New Brunswick extensive deposits of 
manganese are known to exist in Nova Scotia, where the ores and 
mode of occurrence are similar though differing in a great meas- 
ure in the matter of production, that of this province being much 
smaller than that of New Brunswick. In Nova Scotia, however, 
there is a very large proportion of pj'rolusite or high grade 
ore. 
On the south shore of Minas Basin and midwa}' between Noel 
