314 



Mr. G. J. Symons. 



[June 21, 



All the observations have been made by Mr. Hackford in the most 

 careful and satisfactory manner. 



Systematic observations commenced with April, 1882, and the 

 whole of the records have been examined by Mr. Marriott. As the 

 series is still in operation, and some classes of weather have not yet 

 occurred, it is impossible to give at present final results. The 

 leading features of the first nine months' work are, however, of con- 

 siderable interest, and may be thus epitomized : — 



Table I gives the monthly means of the readings of the maximum, 

 minimum, and dry bulb thermometers in the churchyard, and on the 

 roof of the belfry, at 9 a.m., from April to December, 1882. 



From this it will be seen that the mean maximum temperature at 

 4 feet exceeds that at 170 feet by 1°"9, while the mean minimum 

 temperature at 4 feet falls below that at 170 feet in almost every 

 month, the mean difference being 0°'4. The range of temperature is, 

 therefore, 2° *3 less on the belfry than it is at 4 feet above the 

 ground. 



The temperatures at 9 a.m. show that on the average the air at 

 4 feet is 1°'3 warmer than at 170 feet. 



Table T. 





Churchyard and Belfry. 



1882. 



Maximum. 



Minimum. 







9 A.M 







4 

 feet. 



170 



feet. 



Diff. 



4 

 feet. 



170 



feet. 



Diff. 



4 

 feet. 



170 



feet. 



Diff. 





o 







o 









o 









53 



•4 



50°'9 



-2'5 



40°-3 



40°- 5 



+ 6-2 



46 



•8 



45°'2 



-°i-6 



60 



3 



57*4 



-2-9 



43-8 



44-9 



+ 1-1 



53 



•4 



51 -2 



-2'2 





63 



•2 



60-6 



-2-6 



49 



48-9 



— O 'I 



56 



•3 



54 6 



-i*7 



July 



68 



•4 



65 -4 



- 3 -o 



52 -2 



52 -6 



+ 4 



60 



•8 



58-6 



-2'2 





66 



•3 



63-9 



-2-4 



52-0 



52-6 



+ 0-6 



59 



•4 



57 -7 



-i7 





61 



■3 



59-5 



— 1-8 



47-4 



48-6 



+ 1-2 



54 



3 



53 1 



-I -2 





55 



•3 



54-3 



— I -o 



44-8 



45-2 



+ 0*4 



49 



•6 



49 -0 



-o-6 





46 



•7 



46 -0 



-o-7 



37 '4 



37-8 



+ 0-4 



41 



■1 



41-0 



— O 1 





42 



•4 



42-0 



-o-4 



34-2 



34-1 



— o 'I 



37 



7 



37-5 



— O -2 



Mean 





















57 



•5 



55 -6 



-i-9 



44-6 



45 -0 



+ 0-4 



51 







49-7 



-i '3 



Table II gives the monthly means of the readings of the dry bulb 

 thermometer in the churchyard at 4 feet, and of the electrical ther- 

 mometer at the top of the tower, at 260 feet, above the ground, for 

 every two hours from 9 a.m. to 9 p.m. from April to December, 1882. 



From this it will readily be seen that during the period in question 

 the mean temperature in the churchyard during these day hours is- 



