370 Reviews—Geological Survey of Canada. 
Fou Hill and Pierre Group.—The Fox Hill sandstone and the 
Pierre shales were found to be so completely interbedded as to make 
it impossible to separate them, the yellow sandstone at the top of 
the group being precisely similar to that at the bottom, and holding, 
moreover, the same fossils, viz. Placenticeras placenta, Teredo 
burrows, etc. A large series of characteristic fossils was obtained, 
some of them being new to science.! No workable beds of coal were 
found within the district surveyed. 
Edmonton Series.—TVhis is regarded as the most characteristic 
series of the whole region, “for though its thickness, wherever. 
determinable, was never found to exceed 700 feet, the horizontal 
position of the strata causes it to underlie a very large extent of 
country ” from the outcrop of the “‘ Big Coal Seam,” on the North 
Saskatchewan, “to or alittle beyond its easterly bend north of the 
Beaver Hills; and stretching a little south of east to Red Deer 
River in the vicinity of the Hand Hills, comprising the lower part 
of the bold escarpment, which there forms the south-western 
boundary of these hills.” Extensive Coal-beds were found on this 
horizon, which, commencing as a ‘thin bed of carbonaceous shale, 
attained on the North Saskatchewan a thickness of 25 feet. Gold 
was found in paying quantities disseminated through the rocks in 
the vicinity of the “ Big Coal Seam” on the North Saskatchewan. 
It is washed out of the sandstone and clays, and “settles with the 
heavier sand and gravel on the bars running out into the stream.” 
Regarding the derivation of the gold in the Saskatchewan, it has 
been held? by Dr. Selwyn that it was not derived from the moun- 
tains at the source of that river, ‘“‘ but rather was washed out of the 
soft rocks which form its banks, after it leaves the harder strata of 
the mountains. . . .” (p. 134 E.) 
The bottom of the Edmonton Series rests conformably upon the 
Pierre Shales, “without any sharp line of demarcation between the 
two,” the shales gradually losing their massive character, and chang- 
ing insensibly into thin beds, of brackish-water origin. | Whereas 
in the Pierre group remains of land plants and animals were of rare 
occurrence, traces of land plants and fragments of the teeth and 
bones of Dinosaurs were met with in considerable abundance in the 
series under discussion. The last-named fossils were submitted to 
Professor Cope for determination. The rest of the fossils included 
Molluses of the genera Ostrea, Unio, Corbicula, and Panopea, and 
plants consisting of Trapa, Salisburia, and Carpolithes, together with 
fragments of exogenous leaves and wood of Sequoia and Thuja. 
Paskapoo Series.~—The author thus designates ‘all the Laramie 
rocks lying above those of the Edmonton series,” and he therefore 
includes Dr. G. M. Dawson’s “ Porcupine Hills and Willow Creek 
series, and all but the lowest 700—900 feet of his St. Mary River 
1 These are described by J. F. Whiteaves in Appendix I. of the Report, p. 153 E. 
2 See Geol. Surv. Rep. for 1873-74, p. 58 (Montreal). 
° From the ‘‘ Blind Man,” or ‘‘ Paskapoo ’’ River, which flows into the Red Deer 
rie from the north-west, over rocks of the Paskapoo or upper subdivision of the 
aramie, 
