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According to the Blue School theiniooieters the mean temperature of 

 1866 was 49. °3. Mr. Glaisher has detei mined the average yearly temperature 

 at Greenwich to be 49. °2; the monthly averages being as follows— January 

 36.9; February 38.7; March 41.7 ; April 46 2; May 52.9; June 59.1; July 

 61.8 ; August 61.2 ; September 56.6 ; October 50.2 ; November 43.2 ; 

 December 39 8. These averages were deduced from observations taken at 

 Greenwich from 1814 to 1863. 



1 think we may conclude that the temperature of 1866 was an average 

 temperature. 



The rainfall returns as they appear in the table are according to the 

 indications afforded by an eight-inch rain-guage also placed in the Blue School 

 play-grounds. 



This rain-guage, the property of the Woolhope Club, is the workmanship 

 of Negretti and Zambra, and has been examined and repaired by them within 

 the last three or four years. The lim of the instrument stands six feet three 

 inches from the ground and is very fairly exposed. From some cause, however, 

 which I cantiot explain, the daily measurements are always a little less than 

 mine, and I think there must be an error, though a very slight one, either in 

 the receiver or the glass measure. It will be seen by the table that nearly 

 twenty-six inches of rain fell at Hereford during the past year. This, at 

 least, was the quantity measured at the Blue School. At Stretton the Rev. 

 A. C. Key measured 27.57 inches, and at Tupsley Mr. Ballard measured 26.58 

 inches. I re-commenced lain measurements at Hereford on the 1st of August, 

 and by comparing my measurements with those taken at the Blue School I 

 am led to believe that the amount given by the latter is a little less than the 

 true quantity, and that at least twenty-seven inches of rain fell at and around 

 the city of Hereford during the year 1866. This amount is nearly the average 

 for Hereford as gathered from measurements made by the late Mr. Lawson 

 during a period of 1 5 years. The mean of his measurements is 27. 145 inches. 



Mr. Cook is very careful in keeping daily notes of the direction of the 

 wind, and that part of the table which is devoted to this subject has been 

 drawn up with strict attention to accuracy. We have no means at Hereford 

 of measuring the speed or force of the wind, but I hope some day to see a good 

 anemometer set up here, as observations of this kind are of great practical 

 importance. 



Ozone observations ceased suddenly in June, 1866, in consequence of the 

 departure from this neighbourhood of a friend (Mr. Tringham) who had kindly 

 undertaken to manage the ozonometer at bis residence at Hampton Park, Sign 

 HilL This situation is an exceedingly good one for ozone observations. In 

 Hereford it is quite useless to expose ozone test-papers. 



Since my return to Hereford I have availed myself of Mr. Davison's 

 kindly offer to place an ozonometer in his nursery gardens. Mr. Davison has 

 attended to the change of papers with great regularity, and the result of our 

 joint work in this department of meteorology has been published weekly in 



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