Even though spring was underway, the Belgica
was still held tightly by ice and snow. In fact the ice was even
increasing in thickness as temperatures were still below freezing,
soon efforts would be made to extricate the Belgica from the ice's
grip.
In: "Resultats du Voyage du S. Y. BELGICA en 1897-1898-1899
.... Oceanographie Les Glaces Glace de Mer et Banquises" par Henryk
Arctowski. 1908. P. 55. Plate I.
Picture courtesy NOAA