298 The American Geologist. ^^'^>'' ^^o^. 
grain not aggregated into distinct lumps or fragments but in form of 
powder resembling loess, but perhaps from No. i. 
No. 2 in its lower part, here, exhibits interesting features ; and as it 
differs from No. 2 elsewhere it may be distinguished as 2a. It resem- 
bles, in general No. 2, but has thin bands of debris of No. 4a lying 
horizontally for two feet above No. 4a. These bands also are more 
calcareous, and amongst them is fine charcoal lying in short horizontal 
streaks, also rotted limestone pebbles. These horizontal bands are per- 
haps of the same origin and nature as the original No. 4 at the entrance, 
and were undoubtedly taken as such by the party who last August 
levelled along a thin silt layer from the entrance to the further end of 
the tunnel by setting pegs that could be seen in continuous line. In 
that case they can be considered as the southward continuation of 
No. 4. 
Station F. This station is about fift}' feet from the en- 
trance, at the jtmction with the Fowke trench. The Fowke 
open trench becomes a tunnel as it approaches the main tunnel. 
This station is on the wall of the Fowke tunnel facing south. 
No. ic is invisible, apparently wanting, or grades upward into char- 
acters like No. 2. On the floor, in place of No. ic, are many small rot- 
ting limestone pieces and debris of No. 4a, but mostly a' finer debris 
like No. I. 
No. 4 appears here to be represented by a silt seam three feet above 
the floor which pinches out in fifteen inches to a point, with a slight 
upward slope toward the west, in the same manner as seen at Sta- 
tion B. 
No. 2. Above this silt seam is characteristic No. 2. Below this 
seam is apparently the same as mentioned at Station E as 4b, liut quite 
coarse and confused by rotting limestone pieces. It is difficult to dis- 
tinguish No. 4b from No. la, and it is perhaps simply a condition of 
No. la. 
According to Mr. Michael Concannon an artificial chert 
chip was found by him, when, in company with professor H. 
T. Martin of Lawrence, Kansas, he was digging in the vicinity 
of station F, or a few feet further south. It was lying in the 
member 2 or 4b. It was seen by professors Martin and Cham- 
berlin, and was classed with the skeleton as to age and signif- 
icance. At station F a red cjuartzyte boulder was found by Mr. 
M. Concannon. five or six inches in diameter, about twelve feet 
from the skeleton amongst the debris of limestone near the 
bottom, lying in No. 2 at the place where No. ic is wanting; 
and Mr. Jos. Concannon found another, but smaller, at four 
or four and a half feet from the floor near the same place or 
a few feet further north. 
