360 On the Rose of Jericho. 
people, to institute mineralogical surveys of the country,no doubt 
can be entertained but such researches will eventuate in disco- 
veries of a highly interesting character, and such as cannot fail 
both to augment our sources of profitable industry, and to pro- 
mote our commercial independence. In the event of such opera- 
tions, the facilities of a ready transportation, either in vessels or 
‘barges, of the crude ore to the Sault de St. Marie, will point out 
that place as uniting with a commanding geographical position, 
superior advantages for the reduction of the ores, and for the 
subsequent conversion of the metal either into ordnance or other 
articles. At this place a fail of twenty-two feet in the river in 
the distance of half a mile, creates a sufficient power to drive hy- 
' draulic works to any extent; while the surrounding country is 
such as to admit of an agricultural settlement. 
I accompany this report with a geological chart of a vertical 
section of the left bank of the Mississippi at St. Peter’s, embra- 
cing a formation of native copper, and in which the superposition 
of the layers of rock, and the several subdeposites forming the 
alluvial stratum, exhibit a remarkable order. The curvatures in 
the lines of the alluvial stratum, represent a natural mound or 
hillock recumbent upon the brink of the river, which has par- 
tially fallen in, thus exposing its internal structure. The forma- 
tion was first noticed by the garrison who quarried stone for 
quicklime, and for the purpose of building chimneys, at this spot. 
The masses of copper found are all small, none exceeding a pound 
in weight. I have the honour to be, sir, 
With great respect and regard, 
Your most obedient servant, 
(Copy.) Henry R, ScHooicrarr. 
little lakes in that region. In descending the Mississippi it is constantly 
met with in the alluvial soil. At the foot of the Falls of St. Anthony it is 
sparingly found ; around the shores of Lake Sepin it is very abundant, and 
it may be traced below Prairie du Chien, and even as low as St. Genevieve, 
as I have mentioned in my view of the mines. According to the classifica- 
tion of Werner, which is founded on ‘alternate bands of red and white,” 
many of these specimens may be ccnsidered as Sardonyx. They are often 
associated with common chalcedony, with cacholong, and with certain va- 
rieties of agate and flinty jasper. In a few instances the common opal, in 
small fragments, is met with. 
LXXV. Observaticns and Experiments on the Rose of Jericho ; 
with brief Notices of its History. By James Mivvar, M.D., 
Fellow of the Royal College of Physicians and Lecturer on 
Natural History and Chemistry, Edinburgh. 
Th r singular property which the dried specimens of the Rose 
of Jericho possess of expanding in water, has long attracted the 
attention 
