...have already given Charlevoix's theory to account for them. Volney supposed that Lake Ontario was-the seat of an ancient volcano, •which occasionally...depressions, recurring, as they often do, at intervals of ten or twelve minutes, and the result of observations at such times may be regarded in some degree...

...fluctuations in the level of the water ; but sometimes the water level varied rapidly in the harbor, while no such variations occurred in the barometer at the place of observation. These variations in the level of the water, may be caused by varied barometric pressure of the air...

...there was not a breath of wind on the lake. Similar phenomena occur on several of the Swiss lakes. Professor Mather, who observed the barometer at Copper...depressions, recurring, as they often do, at intervals of ten or twelve minutes ; and the result of observations at such times may, in some degree, be regarded...

...there was not a breath of wind on the lake. Similar phenomena occur on several of the Swiss lakes. Professor Mather, who observed the barometer at Copper...depressions, recurring, as they often do, at intervals of ten or twelve minutes ; and the result of observations at such time may, in some degree, be regarded...

...there was not a breath of wind on the lake. Similar phenomena occur on several of the Swiss lakes. Professor Mather, who observed the barometer at Copper...depressions, recurring, as they often do, at intervals of ten or twelve minutes ; and the result of observations at such time may, in some degree, be regarded...

...remnrks : — " As a general thing, fluctuations in the barometer accompanied fluctuations in th« level of the water ; but sometimes the water-level...depressions, recurring, as they often do, at intervals of ten or twelve minutes ; and the result of observations at such times may, in some degree, be regarded...

...fluctuations in the level of the water; but sometimes the water-level varied rapidly in the harbor, while no such variations occurred in the barometer at the place of observation. ' The variations in the level of the water may be caused by varied barometric pressure of the air on...

...fluctuations in the level of the water ; hut sometimes the water-level varied rapidly in- the harbor, while no such variations occurred in the barometer...of a storm, or a disturbed state of the atmosphere. We are therefore led to infer that these phenomena result, not from the prevalence of the winds acting...

...phenomena have been noticed on the Swiss Lakes Constance and Geneva, which are there called seiches. which occasionally afforded signs of being not entirely...depressions, recurring, as they often do, at intervals of ten or twelve minutes, and the result of observations at such times may be regarded in some degree...

...fluctuations in the level- of the water; but sometimes the water level varied rapidly in the harbor, while no such variations occurred in the barometer at the place of observation. The variations in the level of the water may be caused by varied barometric pressure of the air on...