CONTENTS. 



Introduction . . . > . . . . 



Record of observed daily mean temperature, 1818 to 1823 

 Record of observed daily mean temperature, 1829 to 1859 

 Resulting monthly -temperatures ^ . . . . 



Mean annual temperatures . . . ^ , . 



Irregular fluctuation in the monthly mean temperature 



Annual fluctuation of the temperature .... 



Examination of epochs of supposed irregularities in the annual fluctuation 



Monthly mean temperature at certain hours of the day 



Mean range of the diurnal fluctuation for each month 



Direction of the wind, method of reduction 



Relative frequency of each wind .... 



Annual variation in the relative frequency of the wind 

 Annual fluctuation in the resulting direction of the wind 

 Apparent secular change in the mean direction of the wind . 

 Relation of the direction of the wind to temperature . 

 Relation of the direction of the wind to rain . 

 Relation of the direction of the wind to fair weather . 

 Atmospheric precipitation, amount, and frequency, 181Y to 1869 

 Remarks on the occurrence of snow and frost . 

 State of the weather . . . . . . 



Discussion of atmospheric pressure, 1829 to 1859 



(Illustrated with 13 small diagrams.) 





V 



1 





4 





17 





17 





19 





20 





22 





27 





31 



, 



31 





33 





34 





35 





36 





36 





38 





38 





39 





41 





42 





42 



(V) 



