TEMPERATURE AT HALIFAX, NOVA SCOTIA. 



29 



TABLE III. 



Mean Diurnal Variations of Temperature, at Halifax, for each month and for the year, from 

 JSi-hourly Observations in the years 1867-69. 



One of the uses of Table III. is to supply corrections to the monthly 

 means derived from less frequent observations' at the same station in 

 other years, so as to render them comparable with the means derived 

 from an hourly or bi-hourly series. 



This has been done in the case of the temperatures at Halifax in 

 1870, when the observations were taken at equal intervals of four 

 hours, commencing at 4 a.m. The corrections (which are very small) 

 were applied to the monthly means for 1870, and the corrected means 

 were then combined with the monthly means for the years 1867, 1868, 

 and 1869, as shown in the following table. 



