they are connected with the tidal bore in the Meghna estuary. Tidal bores are regular phenomena, and if they somehow caused the Guns here, the Guns would be heard regularly, which they are not.

Seneca Lake in New York was the site of noises that were thought to come from the release of bubbles of natural gas from deep in the lake, observed as early as 1903. The bubbles were not ignited, of course, and if they were they would only have burned quietly. They were thought to come from the Oriskany formation, a sandstone that had been drilled for natural gas in the vicinity. These "guns" were still around in 1934, when the gas wells had been exhausted. There were also the "Moodus noises" of the lower Connecticutvalley, known to the Indians and heard from 1709 to 1729, 1852 and 1885, and were heard again in 1897. They were described as a thunder and a roar. Unexplained explosions were heard near Deerfield, NH in 1846. All these noises are mysterious, but somewhat unlike the Barisal guns and similar booms.

An apparently different phenomenon was first noticed in 1666, during an engagement of the English and Dutch fleets in the Channel on 1 June. The sounds of the guns were heard in London, but not on the South Downs, Deal or Dover, all points between the battle and London. This was recorded in the diaries of John Evelyn and Samuel Pepys as a remarkable occurrence, that the winds brought to them the noise of the guns, but