Ores of Iron, Manganese, &c. in Vermont. 57 
fess attractive to general readers, of intelligence, it would 
be in a form adapted to the uses of the geological student, 
and could hardly fail of coming into general use as a text 
book on the reek (aan of alluvion. 
Art. VI -—Notice of Ores of Tron and Masipawats and of 
Yellow Ochre, in Vermont; by Professor Freperic CK 
Hart, ¢ ina letter to the Editor, dated, 
nieces - Middlebury College, Deo. 1, 1820. 
; “x0 “Pnovesson SUELIMAN. 
7 visited news inotttlis the fa (he tee ore: Bee eit: ee 
iron works, in Bennington, Vermont. The ore bed is sit- 
uated on the south side of. an arm of the green mountain. 
It is covered by a stratum of sand, about two feet thick, con- 
taining innumerable round, quartzose stones of various si- 
zes, called by the inhabitants of the town, hard heads. The 
ore is obtained with great facility from the bed. It is most- 
ly brown hematite. I collected a few specimens of the 
po rth ice ne of iron. It does not make 
bar iron. — manu chard Nite’ Kettles; stores, ca 
riage-boxes, ues The ore is not rich. Mr. Traner, the 
owner and superintendant of the works, informed me, 
it yields, on an average, about 33 1-3 per cent. He added, 
that not far from two hundred 02 twelve tons of cast irou 
are made anoually, at his wor 
iron ore rests on a bed of unknown thickness, of the 
skide of manganese, which appears to belong chiefly to the 
variety cé manganese. Its colour is brown, 
often very deep brown, i inclining to black. Its te: 
earth 3 its lustre: dull. To borax it imparts a° 2 
oxis es vin abundance | ‘when | head ite 
echt it exons is «Fon ‘said J is Tae ue 
it with the iron, the vitae as al sion, that j 
secre the metal a sti over ‘ead whole furnace.” 
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