. Acadian geology [microform] : the geological structure, organic remains and mineral resources of Nova Scotia, New Brunswick and Prince Edward Island. Geology; Paleontology; Geology; Geology; Geologie; Paléontologie; Géologie; Géologie. THE FLORA OP THE COAL FORMATION, 471 3. Total. Bl coals. 49 41 23 16 16 11 3 1 30 20 12 11 10 3 18 17 16 14 3 1 The number of coals reckoned in this cofil-ficld may vary according to the manner in wliicli the several layers arc grouped; but as arranged in the sectional list given in a previous chapter it amounts to eighty- one in all. Of , 23 arc found i
. Acadian geology [microform] : the geological structure, organic remains and mineral resources of Nova Scotia, New Brunswick and Prince Edward Island. Geology; Paleontology; Geology; Geology; Geologie; Paléontologie; Géologie; Géologie. THE FLORA OP THE COAL FORMATION, 471 3. Total. Bl coals. 49 41 23 16 16 11 3 1 30 20 12 11 10 3 18 17 16 14 3 1 The number of coals reckoned in this cofil-ficld may vary according to the manner in wliicli the several layers arc grouped; but as arranged in the sectional list given in a previous chapter it amounts to eighty- one in all. Of , 23 arc found in Division 3 of Logan's section, being the upper member of the Middle Coal fonnation; 49 arc found in Division 4 of Logan's section, being the lower member of the Aliddlo Coal formation; 9 occur in Division G of Logan's section, or in the equivalent of the Millstone-grit. In the latter group few of the coals were sufficiently well exposed to enable a satisfactory examination to be made. I have grouped the remains under three heads—External Forms of Plants, Microscopic Structure of Plants, and Animal Re- mains—and have arranged the forms under each in the order of their relative frequency of occurrence. No mention is made of Stigmaria, which occurs in nearly every coal or its undcrclay. The following are the conclusions, based on the above table and on examinations of the Coal of Pictou and Sydney:— " 1. With respect to the plants which have contributed the vegetable matter of the coal, these are principally the Sigillarice, with Cor- daites, Ferns and Calamiics. "With these, however, are intermixed remains of most of the other plants of the period, contributing, though in an inferior degree, to the accumulation of the mass. This conclusion is confirmed by facts derived from the associated beds,—as, for instance, the prevalence of Stigmaria in the underclays, and of Higillarice and Calamites in the roof-shales and erect forests. " 2. The woody matter of
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
