. The earth and its inhabitants .. . flavour. There is probably no other instance on the globe of salt-water inlets thus changed into fresh-water reservoirs, where so many marine species have become naturalised. The same Icelandic explorers amongst the semi-marine lakes mention the Diupalon, near the extremity of the Snaefells-Jokull headland. This lake is apparently cut ofl* from the sea by a barrier of lavas ; yet there must be some communication, since it ebbs and flows regularly. Nevertheless its waters are sweet, so that the tides must act from beneath in the same way that they do on

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Keywords: ., bookcentury1800, bookdecade18, booksubjectgeography, bookyear1883