566 Reviews — Geological Survey of Canada. 



America") also accompanies the map, and consists of a title-page 

 and 12 pages (11 inches by 7| inches). It consists chiefly of 

 historical introduction and notes on classification and colouring of 

 the Geologic Series. Bernard Hobson. 



IV. — Geological Survey of Canada. A. P. Low, B.Sc, Deputy 

 Head and Director. Paleozoic Fossils. Vol. iii, part 4 

 (and last). By J. F. Whiteaves, LL.D., F.G.S., F.R.S.C. 

 pp. 243-352, with pis. xxiii-xlii. (Ottawa, September, 1906.) 



ri^HIS memoir contains four distinct papers, numbered in 

 .i_ continuation of those contained in the previous parts, viz. : 

 (5) The fossils of the Silurian (Upper Silurian) rocks of Keewatin, 

 Manitoba, the north-eastern shore of Lake Winnepegosis, and the 

 lower Saskatclie wan River. (6) The Canadian species of P/ecioceras 

 and Barrandeoceras. (7) Illustrations of seven species of fossils 

 from the Cambrian, Cambro-Silurian, and Devonian rocks of Canada. 

 (8) Revised list of the fossils of the Guelph Formation of Ontario. 



5. The Keewatin fossils comprise two series. The first, collected 

 at Rainy Island and 17 to 30 miles below it, consist of few and 

 fragmentary specimens which were originally referred provisionally 

 to the Devonian. The second series, obtained in 1901 from similar 

 rocks on the Ekwan River and other localities in the province, 

 furnished unmistakable evidence of the true age of the rocks, which 

 proved to be Silurian. The following classes are represented in 

 these collections, which contain twenty- three species from the 

 Ekwan River, described in Ann. Rep., vol. xiv, pt. F, 1904, but 

 illustrated in this memoir for the first time : — Spongias, Anthozoa, 

 Hydrozoa, Echinodermata, Polyzoa, Brachiopoda, Mollusca, Crustacea 

 (Ostracoda, Trilobita). 



The fossils from Manitoba (Stonewall and Davis Point, Lake 

 Manitoba) comprise a few species of Corals, Brachiopods, and 

 Molluscs ; those from Davis Point, Lake Manitoba, three species of 

 Corals and a doubtful Stromatoporoid. From the north-east shore 

 of Lake Winnepegosis, and also from the Lower Saskatchewan, 

 species representative of the Anthozoa, Brachiopoda, Mollusca, and 

 Crustacea were obtained. 



6. This section contains critical comments upon the following 

 species of Flectoceras and Barrandeoceras ; the original descriptions 

 of both genera and species being given in full : — Flectoceras Jason, 

 Billings (sp.) ; P. Halli, Foord (sp.) ; P. (?) undatnm, Conrad (sp.) ; 

 Barrandeoceras natator, Billings (sp.) ; B. Minganense, Hyatt; 

 jB. subcostidatum, Whiteaves; B. vagrans, Billings (sp.). 



7. These species have been described, at various times, in the 

 Canadian Record of Science or in the Ottawa Naturalist, but none 

 of them have been either described or figured in the publications 

 of the Geological Survey, and four have not previously been figured 

 anywhere. They are as follows : — Anomalocaris Canadensis, 

 Whiteaves, from the Cambrian rocks of British Columbia, a species 



