The photograph, from Ponting's 7 x 5 inch glass plate negative (no.109. Beautiful broken ice, reflections and Terra Nova) was taken on 7 January 1911.
Alternatively titled 'The Death of an Iceberg' by Ponting: 'During those midnight days, when others slept and only the watch and I were awake, some of my most memorable Antarctic experiences befell me. It was in those 'night' hours ... that I secured some of my best Polar studies. One of these was 'The Death of an Iceberg' -- which represents a berg in the last stage of decay, from the action of the sun and currents.' (H.G. Ponting, The Great White South, London: 1924, p.69.)