42 BULLETIN OF THE NATURAL HISTORY SOCIETY, 



a member of this Society who resides in the summer at 

 Riverside, has also told Mr. Kaiii that he has heard similar 

 sounds, on clear warm days, on the Kennebecasis from a 

 southwest direction. Nootlier reports of this occurrence 

 in New Brunswick have reached me. The Scientific 

 American (June 27th, 1896, p. 403) has called attention 

 to them and requested that observations be communicated 

 to its columns, but apparenth' so far without result. 



The latest opinion as to the origin of the sounds 

 appears to favor an atmospheric origin, possibly connected 

 with electrical disturbances, A yevy detailed circular, 

 calling for exact observations, with series of questions and 

 blank forms, has been issued b}' M. Van den Broeck of 

 Brussels, who appears to have been the first to call scien- 

 tific attention to them. It is very desirable since the 

 sounds occur here, that they should be scientifically 

 observed and recorded ; and it will be best to communicate 

 the results to this Society, through which they will reach 

 those who can make the best use of them. To secure the 

 best results the following form, altered somewhat from M. 

 Van den Broeck's circular, should be followed. 



Name of observer. 

 Date of ol:)servation. 

 Exact place of observation. 

 Exact time of each observation. 

 Direction of the sound. 



Character of the sound (full description witli comparisons). 

 Wind, direction and velocity. 

 State of tlie sky. 

 State of the sea. 

 Mist conditions. 



Barometer (state of the weather a few hours before and after). 

 Temperature. 



Other remarks, including' suggestions as to their origin, and 

 reasons why they cannot l)e gun reports. 



