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Show ANNOTATIONS AND ADDITIONS. imilar degrees of latitude. East coast of America. 29° 481 St. Augustin • 30° 21 West roast of Europe. Cairo . • Reaumur. 115 Fahrenheit. In the column of temperatures in the preceding table the first number represents the temperature of the year; that which stands in place of a numerator the mean winter temperature; and that which standH in the place of a denominator the mean summer temperature. Besides the great difference of mean annual temperature, there is also a striking difference between the two coasts in respect to the distribution of that temperature into the different seasons of the year, and it is this distribution which is most influential both on our feelings and on the processes of vegetation. Dove remarks generally, that the summer tempera.ture of America is lower under equal degrees of latitude than that of Europe (Temperatur tafeln nebst Bemerkungen iiber die V erbreitung der Warme auf der Oberfl.liche der Erde, 1848, s. 95). The climate of St. Petersburgh (or to speak more correctly, the mean annual temperature of that city which is in lat. 59° 56'), is found on the East coast of America in l:J.t. 4H0 , or 12!0 more to the south; in like manner we find the climate of Konigsberg (lat. 54° 43'), at Halifax (lat. 44° 39'). The temperature of Toulouse (lat. 43° 36') corresponds to that of Washington (lat. 38° 53'). It would be very hazardous to lay down any general statements respecting the temperature in the territory of the United States of America, as we must distinguish in that territory three regions : |