TABLE OF CONTENTS. 



Variation in the mean level depending on the moon's declination 

 Effect of changes of atmospheric pressure on the tidal level . 

 Effect of the wind upon the mean level of the sea 

 General table of observed times and heights of high and low waters 

 Half-monthly inequality in time and height 

 Effect of changes of the lunar parallax on the half-monthly inequality 

 Effect of changes of the moon's declination on the half-monthly inequality 

 investigation of the diurnal inequality in height and time 

 Separation of the diurnal and semi-diurnal waves 

 Investigation of the form of the tide waves . 

 Progress of the tide through Baffin Bay 

 Average depth of Davis Strait, Baffin Bay, and Smith Strait . 

 Illustrated with six wood-cuts and three plates 



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Part IV.— METEOPvOLOGICAL OBSERVATIONS. 

 General remarks . . . 



Temperature, at Port Foiilke (Illustrations 1, 2, 3). 



Comparison of thermometers and record of atmospheric temperature 



Daily mean temperature ..... 



Annual fluctuation of the temperature of the air 



Diurnal fluctuation of the temperature of the air 



Supposed dependence of the winter temperature on the lunar phases 



Relation of the atmospheric temperature to the direction of the wind 



Effect of a fall of snow (or rain) on the temperature . 



Effect of clear and cloudy weather on the temperature 



Observations of the direct heating power of the sun . 



Observations of temperature made by Dr. Hayes on his northern journey 



Atmospheric Pressure, at Port Foulke (Illustrations 4, 5, 6, Y). 

 Record of barometric observations . . . . 



Diurnal fluctuation of the atmospheric pressure 

 Annual fluctuation of the atmospheric pressure 

 Mean atmospheric pressure at the sea level 

 Monthly and annual extremes of pressure 



Relation of the atmospheric pressure to the direction of the wind 

 Barometric oscillations during storms .... 

 Note on atmospheric moisture . . 



Wind, at Port Foulke. 



Record of wind, direction and force .... 



Method of reduction and resulting directions . 



Relative frequency of each wind and of calms 



Average velocity of wind ..... 



Occurrence and duration of storms .... 



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m 



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Appendix, containing a record of the weather and miscellaneous notes 



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