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page 29 note 1 I borrow this descriptive word from MM. Milne Edwards and Haime, but it would be almost better to say that they are zigzag or serpentine.
page 29 note 2 Abstract of Paper read in the Anthropological Section of Brit. Assoc. Manchester.
page 30 note 1 Abstract of paper read before the Geological Section of British Association, Manchester, 1887.