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ished in velocity, though the average temperature of 67.5° was maintained for nearly 48 hours longer. The observations even indicated a very slight northerly drift during this time, which I am inclined to ascribe to an excess of leeway, from the direction of the prevalent winds. After 24h on the ninth Sept. the temperature fell simutaneously with a succession of SE gales which obliged us to lay to, for two days and prevented astronomical observations being made. The wind gradually moderated and the temperature decreased but we were still unable to obtain any sight of the sun or other heavenly bodies for four days. On the 13th the temperature had fallen to 52°, which has