est month of the year, in most localities. The
atmospheric machinery reaches its extreme southern transit, for the
season, during the month--usually about the middle. It remains stationary
a while--usually till after the 10th of February. One or more thaws,
resulting from tropical storms, occur during the month, in normal winters,
but they are of brief duration. Boreas follows close upon the retreating
storm with his icy breath. There is a remarkable uniformity in the
progress of the depression of temperature, to the extreme attained in this
month, over the entire hemisphere. It differs in degree according to
latitude and magnetic intensity; but it progresses to that degree,
whatever it may be, with as great uniformity in a southern as northern
latitude. The table, copied from Dr. Forrey, discloses the fact, and so
does the following one, taken from Mr. Blodget's valuable paper, published
in the Patent Office Report for 1853:

TABLE SHOWING THE MEAN TEMPERATURE FOR EACH MONTH AT SEVERAL PLACES, VIZ.:

+---------------------------------------------------------------------+
| | Lat. | Jan. | Feb. |March.|April.| May. |June. |
|-------------------|-------|------|------|------|------|------|------|
|Quebec, Canada E. |46 deg. 49'| 9.9 | 12.8 | 24.4 | 38.7 | 52.9 | 63.7 |
|New York, N. Y. |40 deg. 42'| 30.2 | 30.8 | 38.5 | 49.1 | 59.6 | 69.1 |
|Albany, N. Y. |42 deg. 39'| 24.5 | 24.3 | 34.8 | 47.7 | 59.8 | 68.0 |
|Rochester, N. Y. |42 deg. 45'| 26.1 | 25.8 | 33.0 | 45.8 | 56.2 | 64.5 |
|Baltimore, Md. |39 deg. 17'| 33.1 | 34.3 | 42.4 | 53.0 | 63.2 | 71.6 |
|Savannah, Ga. |32 deg. 05'| 52.6 | 54.7 | 60.0 | 68.4 | 74.8 | 79.4 |
|Key West, Fla. |24 deg. 33'| 70.0 | 70.7 | 73.8 | 76.3 | 80.2 | 82.1 |
|Mobile, Ala. |30 deg. 40'| 51.3 | 53.7 | 59.4 | 67.1 | 74.1 | 77.8 |
|New Orleans, La. |30 deg. 00'| 54.8 | 54.5 | 61.5 | 67.6 | 74.0 | 78.6 |
|Marietta, Ohio |39 deg. 25'| 32.2 | 34.1 | 42.6 | 53.0 | 61.8 | 69.2 |
|San Antonio, Tex. |29 deg. 25'| 52.7 | 57.9 | 65.5 | 69.7 | 76.4 | 80.5 |
|San Francisco, Cal.|37 deg. 48'| 50.1 | 51.0 | 53.8 | 57.7 | 55.9 | 58.8 |
+---------------------------------------------------------------------+

+-----------------------------------------+
|July. | Aug. | Sept.| Oct. | Nov. | Dec. |
|------|------|------|------|------|------|