Dove on the Law of Storms. 327 



passed over 3,000 nautical miles in eleven days. Within the 

 tropics, the direction of its path was N. 61° W. ; in the latitude 

 of 40° it was N. 58° E. 



The storm which began in the neighborhood of Guadaloupe 

 on the 3rd of September, 1804, reached the Virgin Islands and 

 Porto Rico on the 4th, Turks Island on the 5th, the Bahamas 

 and the Gulf of Florida on the 6th, the coasts of Georgia and of 

 the Carolinas on the 7th, Chesapeake Bay, the mouth of the Del- 

 aware and the neighboring parts of Virginia, Maryland and New 

 Jersey on the 8th, Massachusetts, New Hampshire and Maine on 

 the 9th. Its curved path from Guadaloupe had extended over 

 2,200 nautical miles in six days, or at the rate of 15J miles an 

 hour. 



The storm which prevailed at St. Thomas on the 12th of Au- 

 gust, 1830, passed near Turks Island on the 13th, the Bahamas 

 on the 14th, the Gulf and coast of Florida on the 15th, along 

 the coasts of Georgia and the Carolinas on the 16th, those of 

 Virginia, Maryland, New Jersey and New York on the 17th, 

 George's Bank and Cape Sable on the 18th, and the banks of 

 Newfoundland on the 19th ; it advanced therefore eighteen miles 

 an hour. Now if we take the actual velocity of the wind in its 

 rotatory direction as five times greater than the progressive move- 

 ment of the storm, we have the air moving through 18,000 miles 

 in seven days. 



The most eastern storm was that of the 29th of September, 

 1830. Beginning to the north of Barbadoes, in the 20th degree 

 of latitude, in long. 68°, lat. 30° its course became northerly, and 

 subsequently, after passing to the west of the Bermudas, north- 

 easterly, until on the 2nd of October it reached the east end of 

 the banks of Newfoundland. 



A very violent storm, but of much less diameter than the pre- 

 ceding, prevailed at Turks Island on the 1st of September, 1821. 

 On the following day it was felt north of the Bahamas, early on 

 the 3rd it reached the coast of the Carolinas, later in the day 

 New York and Long Island, and in the following night it passed 

 over the states of Connecticut, Massachusetts, New Hampshire 

 and Maine, a course of 1,800 miles in sixty hours; its mean ve- 

 locity was therefore thirty miles an hour. 



The course of the storm of the 28th of September, 1838, was 

 similar to the one last described. The storm of the 22nd of Au- 



