On the Nature of the Discoloration of the Arctic Seas. (Read before the Edinburgh Botanical society). (Printed) from The Farmer of 1-st. January 1868. 4°. 3 S. auf 1 gefalt. Dplbl. In mod. Hldr.-Kassette.

Interesting 'Whaling' document. These patches of discolored water are frequented by vast swarms of the minute animals upon which the great 'Right Whale' of commerce (Balaena mysticetus) alone subsists. The fact is well known to the whalers and accordingly the 'black water' is eagerly sought for by them. - Gefaltet, etw. fleckig u. gebräunt, Falzeinrisse.

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