The Canadian journal of industry, science and art . Tig. 236. Stricklandia elongata (Billings). Pig. 237. Phacops bufo (Green). In addition to these forms, Spirifer mucronatus (fig. 238), Spiri-gera concentrica (fig. 239), and Atrypa reticularis (fig. 240), mayalso be mentioned as being of common occurrence. The Corniferous formation (No. 16 in the sketch-map, fig. 249)occupies two extensive areas in Western Canada, although coveredand obscured in most places by Drift accumulations. These areascomprise portions of the counties of Welland, Haldimand, Norfolk,Brant, Oxford, Perth, Huron, and Bru

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The Canadian journal of industry, science and art . Tig. 236. Stricklandia elongata (Billings). Pig. 237. Phacops bufo (Green). In addition to these forms, Spirifer mucronatus (fig. 238), Spiri-gera concentrica (fig. 239), and Atrypa reticularis (fig. 240), mayalso be mentioned as being of common occurrence. The Corniferous formation (No. 16 in the sketch-map, fig. 249)occupies two extensive areas in Western Canada, although coveredand obscured in most places by Drift accumulations. These areascomprise portions of the counties of Welland, Haldimand, Norfolk,Brant, Oxford, Perth, Huron, and Bruce, on the one hand, and partsof Kent, Essex, and Lambton on the other. A comparatively broadtract, occupied by the Hamilton formation, intervenes between thesetwo areas. The latter formation, as shewn some years ago by SirWilliam Logan, rests in a depression on the summit of a flat but im-portant anticlinal which traverses this western peninsula in a generaleast and west direction. Exposures of Corniferous strata occur moreparticularly on or near

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Keywords: ., bookcentury1800, bookdecade1850, bookpublishertoron, bookyear1856