GILPIN. 
252 MINERALS FOR THE PARIS EXHIBITION. 
The coals of Pictou County are represented by samples from 
the mines of the Acadia Coal Company. These deposits have 
long been worked. Samples of coal are also shown from the 
Chignecto, Joggins and Springhill Colleries. Interesting 
analyses, ete., of the seams found at the last-named district have 
been furnished by me in late numbers of the Transactions of the 
Institute. 
Manganese. 
At present the production of manganese is at a low ebb in 
this province. For many years the Tenny Cape Mines had a 
world-wide reputation for the production of small amounts of 
extremely pure ore. For some time past little ore has been 
mined. It is not doubted that the resources of the district are 
exhausted ; but the researches of the chemist have pointed out 
methods for the production of pure manganese oxide as a by 
product, which have lessened the demand for a native ore almost 
chemically pure. However the demand for manganese for steel 
making purposes has again offered a market for manganese ores; 
high in grade, and phosphorus free. Attention is now being 
directed to the ores of this district, and with modern appliances 
for prospecting and mining it is anticipated that Tenny Cape 
will again become a producer. The samples collected exhibit 
well the celebrated crystalline pyrolusite characterising the 
district. 
The following analysis will serve to show the character of 
the ores of this district, which occur in lower carboniferous 
limestones :— 
ils JOE 
MOISHUIe cyst gnc ais Bec. ac Soa CeeS 1.66 205 
Water of Composition...... Joe roe: : 
leon speroxide.:2\./5. eer EeMtactole.«: risus LOUD 2.55 
Oxyaenm) 20'o... ee Geren Mey tes as 7.036 Bt * 
Baba or aoe ene Bs Set Oo eee aa Or 1.12 
Insoluble? J ae eee (or 1.728 2.80 
Phosphoric acidi..s.Jcnseeee eee a: aeshatd 1.029 
Manganese oxides ....... See Arcee 84.620 eae 
Peroxide of manganese ..... Ete land aheaw neice pS 90.15 
ene ee eee he Sok bier py Ee apne arnt ty & trace. 
