38 PROCEEDINGS OF THE AMERICAN ACADEMY 



to northeasterly, and later at night rain began, continuing into the 

 next day (August 25) ; this was evidently the approaching rain area 

 of the cyclone on the southern coast. 



Auf^ust 25-30. The 25th was a cool day of northeast rain without 

 thunder, the centre of low pressure being on the southern coast; and 

 with the coming of this cool general storm the more continuous hot 

 weather of summer was ended (mean max. from Aug. 25 to 30 not 

 over 70°), and thunder-storms were practically over for the season. 

 No thunder was reported during this period. 



August 31. Eight scattering reports on this day, when a faint 

 barometric depression with weak gradients stood in the north, close 

 the records of the three summer months. 



From the large mass of material collected, the records for July 9th 

 and July 21st have been chosen for fuller discussion. 



Storm of July 9th. — The large number of reports received for 

 this date, and the violence of the storm described in many of them, jus- 

 tify its special description. Its rain was generally heavy, though not 

 great in amount, on account of its rather short duration ; its winds 

 were often destructive, and at two places, Kent's Hill, Me., and West 

 Brookfield, Mass., they developed into distinct tornadoes, with the 

 funnel cloud and its dangerous accompaniments. We have here, as 

 on all other dates, greatly to regret the absence of reports from 

 northern New England ; they are so few that it is impossible to trace 

 the storm across northern Vermont and New Hampshire with much 

 confidence; but farther south its attitude is defined with considerable 

 accuracy, as shown in Figure 4, Our earliest records come from Bur- 

 lington and Charlotte, Vt., on the eastern shore of Lake Champlain, 

 where the storm was felt about ]3'\ At 15'^ it stretched northeast- 

 ward from southern Vermont to the angle of the Androscogtrin River 

 in Maine, and at this hour there appeared to be a division of the 

 storm by an east and west line a little north of Concord, N. H. ; the 

 northern portion being somewhat in advance of the southern. The 

 S. W. to N. E. attitude of the front was maintained with tolerable 

 regularity, but the rate of advance seems to diminish as the storm 

 fiided away after sunset on nearing the southeastern coast ; on the 

 coast itself several stations report " no rain." 



Although the front of the storm extended from southwest to north- 

 east, there is good reason for not giving it a direction of advance at 

 right angles to this line; many observers described its motion as from 

 west to east ; and the crowding of the lines representing the succes- 

 sive attitudes of the rain-front where they trend east-northeast, as in 



