40 BULLETIN OF THE NATURAL HISTORY SOCIETY. 



ARTICLE IV. 



^nTotes on the natural history anh 

 physiography of new brunswick. 



BY W. F GANONO. 



1. Upon Remarkable Sounds, like Gun Reports, heard 

 UPON our Southern Coast. 



Read December 3rd, 1895 ; re written December :J4th, IS.IS. 



Everybody who has been much upon our Charlotte 

 County coast must remember that upon tlie still summer 

 days when the heat hovers upon the ocean, what seem 

 to be gun or even cannon reports are heard at intervals 

 coming from seaward. The residents always say in answer 

 to one's question : " Indians shooting porpoise ofi' Grand 

 Manan." This explanation I never believed ; the sound 

 of a gun report could not come so far, and besides the 

 noise is of too deep and booming a character. I have 

 often puzzled over the matter, and it is consequently with 

 great pleasure that I find in " Nature" for October 31st, 

 1895, a short article by Professor G. H. Darwin, in which 

 he calls attention to the occurrence of what is obviously 

 the same phenomenon in the delta of the Ganges, 

 upon the coast of Belgium and in parts of Scotland, and 

 in which he asks for experiences from other parts of the 

 world. Two explanations are suggested by his correspon- 

 dent, M. Van den Broeck of Belgium, who called his 

 attention to the phenomenon, one that the reports are of 



