86 The American Geologist. August, isf* 
of Cyathophyllum, surrounded by an unoccupied area, which again is 
surrounded by the edges of the arched, vesicular plates. Ii is much 
larger than Cyathophyllum athabascense Whitea\ es, but appears to be 
closely related to it. 
The next mountain up the Brazeau forms a sharp ridge of 
limestone with a little slate, dipping 40 degrees to the south- 
west. The fossils collected are all Upper Devonian, as deter- 
mined by Mr. Walker: 
Spirifera disjuncta Sowebby; long-winged variety. 
Strophomena rhomboidalis Wilckins. 
Streptelasma rectum Hall. 
Penestella sp. 
The next ridge has a gentler slope and consists of yellowish 
brown clay slate, partially covered by a thick bed of rough 
eherty limestone. No fossils were found. 
Then follows a small group of mountains just southwest of 
Brazeau lake, having a dip of 28° to the northeast, the reverse 
of the usual tilt in the region. The rocks observed are some- 
times oolitic limestones, but often they appear to be con- 
glomerate beds, containing thin, shaly pebbles and cemented 
by more ferruginous material which weathers yellow. Weath- 
ered surfaces often present ;i marked concretionary structure 
and form shell-like hemispheres, from a few inches to a fool 
or more in diameter. The chief fossils observed are trilobites, 
Mr. Walker describing the specimens brought back as "sev- 
eral small slabs covered with glabella' of a Proetus closely 
allied to P. nevadai Hall, of the Devonian." 
Near the foot of this mountain a cut bank of shale beside 
the north fork of the Brazeau is quite fossiliferous and is ap- 
parently a small outlier of the Cretaceous. Specimens of 
plant remains from this place, which were submitted to Sir 
Win. Dawson, proved too fragmentary for determination. 
Mixed with them he found some scales of animal origin, 
probably remains of fishes and arthropods. Of some brachio- 
pods from the same place, sent to Ottawa, Mr. Whiteaves re- 
marks : 
The three specimens from Cut Bank (Camp 18) contain, as you saj . a 
small Lingula, bul I am not sure by any means whal Lingula ii is. 
Taken in connection with your statemenl that the specimens occur with 
fossil plants, it seems not at all unlikely thai they belong to the Koota- 
nie series of Sir William I >awson. 
At the headwaters of the south fork of the Brazeau, a moun- 
