88 PHILOSOPHY OF STORMS. 



the very first storm mentioned, that of the 26th of April, 

 terminated at Philadelphia, and passed on to the northeast, 

 with the wind still from the north east, it appears plainly 

 that a much greater storm was raging at that very time at 

 no great distance to the south west, in the very direction to- 

 wards which the wind was blowing. 



The storm of the 20th of May was evidently too local in 

 its character to form an exception. As it is known, however, 

 that many of our summer storms set in with the wind near 

 the surface of the ground, blowing from the centre of the 

 storm, it becomes a question of high importance to investi- 

 gate the cause of this difference. 



102. Storm of the 2bh and 27th of April, 1835. On the 

 night of the 25th and morning of the 26th of April, at Phil- 

 adelphia, there was a great rain, with the wind at north 

 east. At the end of the rain the wind continued from the 

 north east with abated violence, being almost calm on the 

 morning of the 27th, with the lower clouds from the W. N. W. 

 and the upper clouds from the west. At three P. M. the 

 wind was from the east, pretty fresh. At six P. M. a very 

 great rain commenced, which continued through the night, 

 the wind changing round by the north, and at ten the next 

 morning it still rained very hard, with the wind from the 

 north west, and violent. The rain began to abate at seven, 

 the wind still being violent from the W. N. W. and at eight 

 the rain ceased, with the wind W. N. W., its violence 

 having a little abated. The barometer was now rising 

 rapidly. 



At Cape May, on the night of the 27th, the wind was 

 violent from south. 



At Baltimore, 1 the rain was very great on the night of 

 the 25th, and continued the most of the day of the 26th. 

 The wind was north east all day on the 27th. The rain 



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1 Our correspondent is Dr. G. Sproston, U. S. Navy. 



