370 Mr. J. Glaisher's Remarks on the Weather 



inches. At Leicester the amount within seventy-two hours 

 was 2*25 inches, and this was the amount which fell on these 

 days at most places. This large fall, extending over so large 

 a portion of the country, was most unusual. 



The approximate mean monthly values of the several subjects 

 of research are shown in extensive tables in the report of the 

 Registrar- General. 



The mean monthly temperatures of the places in Cornwall 

 and Devonshire in these three months are about the same 

 values as those of other places, but the extremes of daily and 

 monthly temperatures are much less than elsewhere. 



The reading of the barometer was low at the beginning of 

 July, being 29*403 inches at 6 h a.m. on the 1st; this reading 

 increased to 29*740 by 6" p.m. on the 2nd ; decreased to 

 29*611 on the 3rd, and increased quickly on the 4th, and 

 reached 30 inches before midnight on this day. The read- 

 ing ranged above 30 inches on the 5th, and decreased to 

 29*635 by midnight on the 9th. During the 10th the value 

 increased 0*539 inch, having passed the point 30 inches at 

 about l h p.m. on this day. The reading continued above 

 30 inches till the 17th ; the highest value was 30*344 on the 

 12th. From the 17th there was a gradual decrease to 29*146 

 on the 20th at 3 h p.m. ; at midnight on this day the reading 

 was 29*467, and increased to 29*781 on the 24th; during the 

 25th the decrease was 0*300 inch, and the reading was 29*480 

 at midnight ; it then gradually increased to 30 inches by the 

 29th. On the 30th the change was considerable, amounting 

 to half an inch during the day ; and at the end of the month 

 the reading was 29*313 inches, and still decreasing. 



On August 1st, at 6 h a.m., the reading was 29*244 inches; 

 after this time it turned to increase, and was 29*581 at mid- 

 night, and reached 29*817 on the 2nd day. On the 3rd it 

 decreased, and was 29*582 at midnight; during the 4th the 

 changes were small; on the 5th the decrease was 0*190 inch, 

 and the reading at midnight was 29*335 inches. During the 

 6th and 7th there was a slight increase. From this time to 

 the 20th the changes were small, and at midnight on the 20th 

 the reading was 29*846 inches. The decrease on the 21st 

 was 0*334 inch, and at noon on the 22nd the reading was 

 29*423 inches, when it turned to increase, and was 29*528 at 

 midnight; the increase continued till the 25th at noon, the 

 reading at this time being 29*947, when it turned to decrease, 

 and the changes after this time to the end of the month were 

 small. 



In September, till the 4th, the reading was above 30 inches; 

 during the 5th it decreased 0*2 inch, and was 29*638 at mid- 



