Note on a paper by Dr. John Davy, entitled, ‘notice on the remains of the recent volcano in the Mediterranean.'

From the circumstance that azotic gas is frequently evolved from thermal springs, the author infers that this phenomenon is in some way connected with volcanic action ; and this he considers to be the case in the instance observed by Dr. Davy, although referred by him to the decomposition of atmospheric air during putrefactive processes going on at the bottom of the sea.