66/85 Clark finds that with returning daylight the diatoms are again appearing. His nets and line are stained a pale yellow, and much of the newly formed ice has also a faint brown or yellow tinge. The diatoms cannot multiply without light, and the ice formed since February can be distinguished in the pressure-ridges by its clear blue colour. The older masses of ice are of a dark earthy brown, dull yellow, or reddish brown." The break-up of our floe came suddenly on Sunday, August 1, just one year after the 'Endurance' left the South-West India Docks on the voyage to the Far South. |