. The Canadian journal of industry, science and art. . Fig. 64. Fig. 65. County of Leeds, C. W., and other districts (see Part V.) It forms, in general, cylindrical or flattened reed-like casts, varying in length from a few inches to a couple of feet, and traversing the strata across the direction of their bedding. The true nature of these casts, however, is still involved in doubt. By some palaeontologists they are looked upon as resulting from holes or tubes made by sand-burrowing annelides. Finally, it may be observed that impressions of modem leaves {Thuja, Populus, Acer, ^c, ^c.,) are occ
. The Canadian journal of industry, science and art. . Fig. 64. Fig. 65. County of Leeds, C. W., and other districts (see Part V.) It forms, in general, cylindrical or flattened reed-like casts, varying in length from a few inches to a couple of feet, and traversing the strata across the direction of their bedding. The true nature of these casts, however, is still involved in doubt. By some palaeontologists they are looked upon as resulting from holes or tubes made by sand-burrowing annelides. Finally, it may be observed that impressions of modem leaves {Thuja, Populus, Acer, ^c, ^c.,) are occasionally found in our drift clays and shell marl deposits (see Part V.) Fossilized Animal Remains:—Keeping always before us the fact that this Essay is addressed strictly to the general reader, it will be necessary, before adverting to the animal remains occurring in Cana-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Canadian Institute. Toronto : Canadian Institute
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