
88 B. N. A. BOUNDARY COMMISSION. 
9..Good-bard lignite, .,..0.c ied geates dak Gbodbbe ete. 
10. Hard yellowish sandy clay... fo3 v6.6 spot sche qed posedes 
11.s Good lignite (07) “CSS speee eae tele ee ace “cere 
12, Greyish sand and sandy clay, showing lines of stratifica- 
tion—in some places soft and incoherent, in others with 
large concretions, and sometimes forming a nearly solid 
BANOSONG . 2. ic eplen:v hoe ee SE eR ees a Eee 9 0 
18. "Hard ‘gray ‘Ulayin sa cos cee ee eee ie eas oo toe 20 
14, Greyish-yellow clay with many thin layers of orange- 
weathering 1TODBtONE.. .. vise fs bo bic SS oly bis Siew e iy die ee 3 0 
16, ‘Tnignite.... { AiCtiyshioy. OVC, Okie ee tle eke ANG 
16. Greyish and yellowish hard sand and sandy clay........ ll 0 
Section concealed by slope of detritus, about............ 12 0 
99 2 
Small spherical ferruginous nodules, resembling bullets, occur in 
considerable number at the foot of the bank. They have a calcareous 
cement, and are derived from one or other of the sandy layers. This 
exposure is remarkable for the very gentle graduation of one bed into the 
next, making it almost impossible to draw lines between them in a mea- 
sured section. 
207. Sections more or less perfect are exhibited in many places in 
the Souris Valley, a mile or two west of the entrance into it, from the 
south, of Short Creek ; and more especially on the north side of the valley. 
They show a great similarity, though not absolutely the same in any two 
places. One of the most perfect exposures seen was in the face of a bank 
from sixty to seventy feet high, and consisted of sand, sandy clays, and 
hard fine clays, very regularly and perfectly stratified, and celoured in 
various shades of yellow-grey, grey, and light drab. At two different 
levels harder sandstone layers of small thickness were seen, and also 
three distinct beds of lignite. The lowest is a hard compact lignite 
resembling cannel coal in aspect, and two feet three inches thick. A few 
feet above this a second seam, eighteen inches thick, occurs, and still 
higher in the series, and about half-way up the bank, a third, of the same 
thickness. At the top of the bank some large nearly spherical sandstone 
nodules rest, and have evidently been derived from a superior bed which 
has been removed by denudation. The clays, and arenaceous clays, at 
several different levels include remains of mollusca, but these are very 
fragmentary, having been crushed by the compression of the containing 
material. A species of Unio is abundant, and remains of gasteropoda 
also occur, though rarely, and in poor preservation. : 
208. On the opposite side of the Souris Valley—which is here of con- 
siderable width—and not far from the last mentioned section, soft sand- 
stone beds, capped by a harder layer also of sandstone, weather into 


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