¹ “Mont Perrier” was first discovered and named by a French expedition in 1946, and was then thought to be higher than Newtontoppen, the highest known mountain in Spitsbergen. In 1950 another French expedition scaled Perriertoppen but was unable to determine its height. In the following year, however, the Oxford and Cambridge Spitsbergen Expedition determined the height of Newtontoppen to be 1712 m. (not 1717 m. as hitherto believed) and of Perriertoppen to be 1708 m. See the Polar Record, Vol. 6, No. 46, 1953, p. 802Google Scholar.