A.D. 1837, influenza appeared in London in the first week in January, the weather during the preceding four months having been singularly wet, cold, and stormy; large quantities of snow having fallen and collected on the ground, even in the streets of London, where it lay for weeks together. The evaporation of the cold water, the result of the succeeding thaw, rendered the air cold and damp for a long time. In the month of November, this year, a hurricane of great violence occurred from the south-west. On Christmas-day there was a storm of wind and snow simultaneously all over the west of Europe,--snow having fallen even in the streets of Lisbon and Palermo: it fell so heavily in England, that it impeded intercourse throughout the country. It was remarkable that snow fell at Canton in February, a thing unknown to the oldest inhabitants. The French army marching upon Constantina, in Algiers, suffered severely from three days of incessant snow. Tremendous hurricanes were experienced about this period over every part of the European and American seas. The weather in England was uncertain and fluctuating from Christmas to the middle of February, when influenza broke out: its duration in London was six or seven weeks; half the population were attacked, and the ordinary rates of mortality during this time were very nearly doubled. The aged and the very young were those who principally suffered. The inhabitants of Russia, Sweden, and Denmark suffered greatly. In Copenhagen, according to Dr. Otto, at least 30,000 were labouring under the disease at one time, in the month of January. Influenza was rife also in Scotland, where it was observed earlier than in England, and it broke out generally in the northern and eastern parts of England before it showed itself in the southern and western. Paris was visited by this epidemic a month later than London, the disease having previously prevailed in Calais and other intervening places. It broke out with great severity in the northern coast of Spain, being aggravated by the events of the civil war then raging in Biscay and Navarre. An epidemic having the character of the influenza of the northern hemisphere was also rife at Sydney and the Cape of Good Hope in the latter part of the year 1836.