Published online by Cambridge University Press: 17 January 2013
Disko Island, (see Plate XV ), is situated in front of a bay in the continent of Greenland, within Davis' Strait, known by the name of Disko Bay, which is sometimes called, particularly in the old Dutch charts, Sydost Bay. This name is derived from an immense curvature, screened by innumerable islands, made in the continent by the sea. Disko Island is situated in 69° 14ʹ of N. latitude. It is distant from the continent towards the south 12 German miles; on the west and north it is surrounded by the sea of Davis' Strait; and on the east, it is separated by a narrow sound, distinguished by the name of Waygat by the Dutch, and by the Greenlanders Ikareseksoak. It stretches northward from 69° 14ʹ to 70° 24ʹ; and its greatest breadth, which is from Fortune Bay on the west, to Flakkerhuk, so named by the Dutch, on the east, is 10 German miles.
page 269 note * Dr Brewster has examined the Greenland Mesotype, and has found it to be an entirely different mineral from the Auvergne Mesotype. In its crystalline form it resembles the Auvergne specimens, while, in its optical properties, it resembles the Iceland Mesotypes. It is very remarkable, that the capillary crystals from Sergvarsoit, have been found by Dr Brewster to be different from the large crystals, and to be the same as those from Auvergne.
page 270 note * The cylindrical Apophyllite, according to the experiments of Dr Brewster, who has examined some specimens which I transmitted to him, differs in a remarkable manner from the Apophyllite of Iceland, Faroe, Uto, and Fassa. Its optical properties he has found to be of a very curious kind.