He has also, within the last forty-eight
hours, discovered a species of the locust, on the lower part of the
Namakagun. The fresh-water shells on this river are chiefly unios. Wild
rice, the _palustris_, is chiefly found at the two Pukwaewas, more
rarely along the banks, but not in abundance. The _polyganum amphibia_
stands just in the edge of the water along its banks, and is now in
flower. The copper-head snake is found at the Yellow River; also the
thirteen striped squirrel.

NUDE INDIANS.--The Indians whom we met casually on the Namakagun, had
nothing whatever on them, but the _auzeaun_. They put on a blanket, when
expecting a stranger. The females have a petticoat and breastpiece. When
we passed the Woodpecker Chiefs party, an old woman, without upperments,
who had been poling up one of the canoes, hastily landed, and hid
herself in the bushes, when her exclamation of Nyau! Nyau! revealed her
position as we passed. Two young married women had also landed, but
stood on the banks with their children; one of the latter screaming, in
fear, at the top of its lungs.

The men were much fatigued with this day's journey. They had to use the
pole when the water became shallow. Yet they went about thirty-six
miles. At night one of them screamed out with pains in his arms. We were
up and on the river again at six the next morning (the 4th). The word
with me was, PUSH; to accomplish the object, not a day, not half a day
was to be lost, and the men all entered into the spirit of the thing. At
half past nine, we reached our breakfast place of the 30th, and there
gummed our canoes. We noticed yesterday the red haw, and _pembina_--the
latter of which is the service berry. This day the calamus was often
seen in quantity.

GEOLOGY.--Rapids were encountered at various points, at which there
appeared large boulders of syenite and greenstone trap. No rock stratum
appears in place, but from the size of the boulders, it seems probable
that the trap formation crosses the bed of the Namakagun. There is no
limestone--no slate. Small boulders of amygdaloid, quartz, granite, and
sandstone mark the prevalence of the drift stratum, such as overspreads
the upper Mississippi uplands. The weather was cloudy and overcast,
producing coolness. I found the air but 64 deg. at 2 o'clock, when the water
stood at 69 deg..

Some fish are caught in this stream, which serve to eke out the very
scanty, and precarious subsistence of the Indians at this sea