Auro7'al Observations at New Haven and Boston. 



171 



Summary of observations at New Haven and Boston. 



If "we classify the entire series of observations by seasons we shall have in 



Spring, 

 Summer, 



300 auroras. 

 308 " 



Autumn, 357 auroras. 

 Winter, 257 " 



showing that in N"ew England, Auroras occur most frequently in autumn 

 and least frequently in winter. 



The inequality in the number of Auroras upon successive years exhibits 

 an unexpected consistency. This is exhibited in the following Table show- 

 ing the number of Auroras seen annually for a ^^eriod of 112 years. 



