Mr. W. Brown on the Oscillations of the Barometer. 257 



more explicit. I have therefore quoted below the principal 

 data of the second of these storms (Law of Storms, p. 18), and 

 from them constructed a chart (Plate IV.), showing the direc- 

 tion of the wind at the different localities at the onset of the 

 storm, and the time occupied by the first period of it. 



" At Charleston (S. C), on the 16th, the gale was from the 

 S.E. and E. till 4 p.m., then N.E. and round to N.W. 



" At Wilmington (N. C.) the storm was from the E., and 

 veered subsequently to the W. 



" In the vicinity of Cape Hatteras, at sea, the storm was 

 very heavy from S.E., and shifted to N.W. 



"Early on the morning of the 17th, the gale was felt se« 



verely at Norfolk, and also in Chesapeak Bay from the N.E. 



" Off the Capes of Virginia, on the 17th, in lat. 36° 20', long. 



74° 2', a 'perfect hurricane' from S. to S.S.E. from 5 a.m. 



to 2 p.m., then shifted to N.W. 



" Off Chincoteaque (M.d.), precise distance from the coast 

 unknown, the gale was severe between S.S.E. and N.N.E. 



" Off the coast of Delaware, in lat. 38°, long. 72°, ' tremen- 

 dous gale,' commencing at S.E. at I p.m. on the 17tb, and 

 blowing six hours, then changed to N.W. 



"At Cape May (N. J.) the gale was N.E. off Cape May, 

 in lat. 39°, long. 74° 15'; heavy gale from E.N.E. on the af- 

 ternoon of the 17th of August. 



" Near Egg Harbour, coast of New Jersey, the gale was 

 heavy at N.E. on the same afternoon. 



"Off the same coast, in lat. 39°, long. 73°, the gale was at 

 E.N.E. 



" In the same latitude, long. 70° 30', \ tremendous gale,' 

 commencing at S.S.E. and veering to N. 



" At New York and on Long Island Sound, the gale was 

 at N.N.E. and N.E. on the afternoon and evening of the 

 17th. 



" Off Nantucket Shoals, at 8 p.m., the gale commenced se- 

 vere at N.E. by E. 



"In the Gulf-stream, off Nantucket, in lat. 38° 15', long. 

 67° 30', on the night of the 17th, 'tremendous hurricane,' 

 commencing at S., and veering with increasing severity to 

 S.W., W., and N.W. 



"At Elizabeth Island, Chatham, and Cape Cod (Mass.), 

 the gale was severe, at N.E., on the night between the 17th 

 and 18th. 



" On the 18th, heavy gale from N.E. at Salem and New- 

 bury Port (Mass.). 



"Early on the 18th, in lat. 39° 51', long. 69°, severe gale 

 from S.E., suddenly shifting to N. 



Phil. Mag. S. 3. Vol. 28. No. 1 87. April 1 846. T 



